Official poster for Melody of Secrets, the 2025 Thai BL mystery series from GMMTV and Snap25

Melody of Secrets

CompletedTV Series🇹🇭

What happens

Picture this. You wake up with no memory, you open a diary that names the love of your life, and then you meet him and know at once that he is the wrong man. That is where Botpleng starts in Melody of Secrets (ความลับในบทเพลงที่บรรเลงไม่รู้จบ), and it only gets stranger from there.

Botpleng Thayadol (Book Kasidet Plookphol) lost his memory in an accident. Dreams and a mysterious diary lead him back home and point him toward a past lover called Tankhun. When Tankhun Rongsompong (Force Jiratchapong Srisang) finally stands in front of him, Botpleng's gut says no. Whoever this charming man is, he is not the Tankhun from the diary.

On the very day they meet, a murder takes place. Botpleng grabs the case as his excuse to stay close, quietly testing the stranger with small details only the real Tankhun would know. The more he digs, the more this Tankhun gets under his skin, which is terrible news for a detective plan.

Fair warning: the case does not stay small. It grows into a string of murders tied to Botpleng's own family, and Tankhun has a private reason to chase the truth, because it connects to what happened to his brother Thunphob (Junior Panachai Sriariyarungruang).

The investigation brings in Inspector Dao (Jan Ployshompoo Supasap) and Lieutenant Nim (Jamie Juthapich Indrajundra). Botpleng's friend Muenmile, called Mile (Boun Noppanut Guntachai), keeps warning him that he could be walking into a trap. At home, the Thayadol family includes Kessara (Pu Piyamas Monayakul) and Khitakan (Kate Thiyada Phanbua), while Jennari (Ployphach Phatchatorn Thanawat) belongs to the Rongsompong side. Tawan Jarujinda plays Tanu.

Under all the clues sits a quieter puzzle. Every answer Botpleng finds about Tankhun leaves him with a harder question about himself. Who was he before the accident, and does he truly want to know?

CONTENT DETAILS

Native Title
ความลับในบทเพลงที่บรรเลงไม่รู้จบ
Original Title
Melody of Secrets
Also Known As
ความลับในบทเพลงที่บรรเลงไม่รู้จบ, Khwam Lap Nai Botphleng Thi Banleng Mai Ru Jop
Themes
Key Themes
AmnesiaHidden identityMurder investigationFamily secretsMusic and memoryTrust
Country
Language
Thai
Networks
Seasons
1
Episodes
10
Duration
About 45 to 50 minutes
Aired Start
Aired End
Release Year
Production Co

Before You Watch

  • Ten episodes: aired on Fridays at 20:30 on One31 from 5 December 2025 to 13 February 2026.
  • Streaming: each episode came to Viu at 22:30, two hours after the broadcast.
  • Studios: produced by GMMTV together with Snap25.
  • Directors: Tawan Jarujinda and Arisa Wawwanjit.
  • Guest role: Mark Jiruntanin Trairattanayon appears as Phleng.

Reviewed by Renkaze

8/10

A diary says you have a boyfriend, and then the boyfriend turns up as the wrong man. Uff, what an opening move. Melody of Secrets hands its hero a love story and a crime scene on the same day, and that double setup made me sit up straight.

Force and Book Trade Friendship Drama for Riddles

Force Jiratchapong and Book Kasidet arrive here from Only Friends and Only Friends: Dream On, where tangled friendships drove the plot. Here the tangle is a murder case, and the chemistry has to survive suspicion. Book plays the man with the blank memory. Force plays the man who does not match the diary.

I like that the romance is built on doubt. Botpleng does not fall for Tankhun in spite of the mystery; he falls for him through it, one quiet test at a time. Every question he asks is also a reason to spend another evening together, which is the most efficient flirting strategy I have heard of in a long while.

Ten Episodes Named Like a Score

Here is the detail I adore. Every episode carries a music marking as its title. The run opens with Time Signature and closes with Da Capo, the instruction that sends a musician back to the beginning. For a story about a man trying to return to his own past, that final title is a perfect little wink.

The violin melodies tied to the family are part of the clue trail as well, so the title is more than decoration. Music is how the past keeps knocking.

A Supporting Cast With Weight

Jan Ployshompoo gives the case a steady centre as Inspector Dao, and Boun Noppanut plays Mile, the friend who keeps telling Botpleng to be careful. Boun landed here a few weeks after his vampire run in Revamp: The Undead Story, so this is a fun change of costume for him. Junior Panachai plays Thunphob, the brother whose fate drives Tankhun. Mark Jiruntanin joins as a guest in the role of Phleng.

Behind the camera, Tawan Jarujinda directs alongside Arisa Wawwanjit and also steps in front of it as Tanu. A director who plays a part inside his own mystery is a lovely bit of mischief.

Two Voices for One Mystery

The leads split the soundtrack between them. Book sings the opening theme Dark and Light, while Force takes the ending theme Endless Love Song. One song opens each episode and the other closes it, so the two men bookend every chapter in sound.

My tip: keep your eye on the diary. The episode summaries return to it again and again, from the dreams of episode 1 to the careful tests of episode 3, so treat every page as a clue.

Final Score: 8/10

LEAD & SIDE COUPLES

Portrait of Thai actor Force Jiratchapong Srisang
Portrait of Thai actor Book Kasidet Plookphol
Force Jiratchapong SrisangForceBookBook Kasidet Plookphol
Since 2022● Current

View Couple

05

Best Scenes

Spoilers ahead. Episode numbers and outcomes are named, so come back after watching if you want to keep it fresh.

Episode 1 (spoilers): The diary. Botpleng's lost memories begin to return through dreams and a diary, and together they guide him back home to the boy he once forgot.

Episode 3 (spoilers): The tests. Botpleng checks whether Tankhun is who he claims to be by using small details from the mysterious diary, and each moment of closeness brings fresh doubt.

Episode 5 (spoilers): Closer to home. New evidence ties the serial killings and an attack on Botpleng to his own family, while Tankhun is torn between protecting him and finding the truth about his brother.

Episode 7 (spoilers): Hypnosis. Botpleng's sessions bring hidden memories to the surface, set off by familiar melodies and family objects, and they raise deep questions about who he really is.

Episode 10 (spoilers): Da Capo. Tontharn looks back on his search for his true self, with flashbacks to his early years and to the choices his adoptive family made for him.

Themes and Messages

Identity is the real mystery. Botpleng sets out to expose a man who is pretending to be someone else, then discovers that the most uncertain identity in the story is his own. The series keeps both questions running side by side, so every truth about Tankhun shifts the ground under Botpleng too.

Love grows out of doubt here. The two leads get close through tests and suspicion, which makes each moment of trust feel earned. Family secrets add pressure from both houses, and music works as memory, with familiar melodies opening the past one note at a time.

Did You Know?

  • GMMTV first announced the series at its GMMTV 2025 Riding the Wave event on 26 November 2024.
  • Melody of Secrets is a nominee for Best LGBTQ+ Programme Made in Asia at the ContentAsia Awards 2026.
  • The Final EP. fan meeting took place on 13 February 2026 at Siam Pavalai, Paragon Cineplex, on the night of the last episode.
  • M1N wrote the words for both theme songs and composed them together with nonchawich.

OFFICIAL TRAILER

OFFICIAL OST

Episode guide: Melody of Secrets

10 / 10 episodes aired · Completed
EP 1
05 Dec 2025
Aired
EP 2
12 Dec 2025
Aired
EP 3
20 Dec 2025
Aired
EP 4
28 Dec 2025
Aired
EP 5
05 Jan 2026
Aired
EP 6
12 Jan 2026
Aired
EP 7
20 Jan 2026
Aired
EP 8
28 Jan 2026
Aired
EP 9
05 Feb 2026
Aired
EP 10
13 Feb 2026
Aired

FREQUENTLY ASKED QUESTIONS

Is Melody of Secrets based on a novel?

No novel is credited. The screenplay is by Kusolin Mekviphat and Phoutida Nosavan.

What does the Thai title mean?

ความลับในบทเพลงที่บรรเลงไม่รู้จบ translates roughly as the secret in the song that plays without end.

Is there an official trailer?

Yes. GMMTV OFFICIAL released it on YouTube on 20 November 2025.

Was there a break during the run?

Yes. No new episode aired on 2 January 2026, so episode 5 arrived on 9 January.

Who sings the songs in Melody of Secrets?

Book Kasidet sings the opening theme Dark and Light, and Force Jiratchapong sings the ending theme Endless Love Song.

Where else are Force and Book paired?

They lead Only Friends (2023), Only Friends: Dream On (2026) and Lovers & Gangsters (2026).

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