Monster

A surgeon’s noble choice births a killer; his hunt for redemption becomes a haunting chase.

Renowned neurosurgeon Dr. Kenzō Tenma’s career is soaring—he’s engaged to the director’s daughter and poised for a top hospital post. One night, a last‑minute patient swap forces him to operate on a celebrated pianist instead of an anonymous immigrant. The operation succeeds, earning accolades, while the man who was denied surgery dies. The moral breach haunts Tenma, and when a similar dilemma resurfaces—choosing between the mayor and a frightened boy named Johan—he defies orders and saves the child. The decision costs him his reputation, his fiancée, and his standing, until a series of suspicious deaths clears his name and thrusts him back into power. Nine years later, a routine rescue of a condemned criminal drags Tenma back into the shadows of his past. The rescued patient is none other than Johan Liebert, now a charismatic yet chilling mastermind whose crimes echo across Europe. Compelled by guilt and a relentless sense of responsibility, Tenma abandons his comfortable life to chase the enigmatic killer. The pursuit becomes a psychological cat‑and‑mouse game, exposing the darkness within humanity and forcing Tenma to confront the true nature of monsters—both born and made.

A cerebral cat-and-mouse thriller following a surgeon hunting a former patient turned manipulative killer. The series explores trauma and evil through mature, psychologically intense storytelling rather than shock value.