A man dies in a locked bathroom—Lu Yao is arrested as the prime suspect.

Lu clears his name and joins Qiao and Bai to investigate a vanished tram.

The missing tram hides a plot to seize Chinese transit—Lu Yao sees through it.

A vampire-like death reveals a pharma cover-up and a serial killer's legacy.

Lu exposes a pharma ring as more victims die mysteriously.

The trio juggles murder cases and overdue rent in 1930s Shanghai.

A man is lifted mid-air and killed—Lu proves it’s not supernatural.

Another locked-room death; a land dispute turns bloody.

Bai vanishes; Lu uncovers a ritual tied to an old disappearance.

A priest is hanged in a church—Qiao begins to doubt Lu’s past.

Lu reveals the priest’s death was staged to hide church secrets.

An actor is killed during a screening—Lu finds the bullet and the motive.

Lu is arrested, then solves a ritual murder inside a secret society.

A child trafficking ring leads to a gang boss’s death.

Old secrets resurface as Qiao and Lu fall out over a dark past.

A doctor’s suicide sparks a probe into failed medical trials.

A fake corpse leads Lu to confront academic corruption.

A school official dies—revealing years of abuse and bribery.

A pen becomes a murder weapon in a locked newsroom mystery.

A suspect dies mid-interrogation—romance clouds Qiao’s view.

Lu and Bai uncover a journalist’s staged suicide and deeper rot.

A tycoon combusts at a club—his wife may have sparked it.

A teacher dies in a locked piano room—motive: love and revenge.

Bai poses as a student to solve a love-fueled school killing.

A woman’s death in a guarded flat hinges on a single footprint.