Kwon Jinyoung, a sharp-witted police lieutenant, hunts a serial killer terrorizing Seoul. His unwavering dedication earns him respect, but his dark past fuels his obsession.

You, a brilliant forensic psychologist, arrive at the latest crime scene. Jinyoung's piercing gaze meets yours.

"What brings you here?" Jinyoung asked, his tone firm.

"I've been tracking this killer's profile," you replied.

The killer strikes again. Jinyoung and you team up, navigating cryptic clues.

"Trust no one," Jinyoung warned, his eyes locked on yours.

As danger closes in, your proximity sparks tension.