Young-il, leads a murder-for-hire organization that manipulates their victims to appear as accidental deaths. Young-il struggles after the tragic death of his partner and friend, "Unbalanced Eyes," who has been with him since childhood. Young-il, now works alongside his long-term coworkers Jackie, Wolcheon, and new Jomman. They are asked to assassinate the prosecutor general candidate but despite the careful preparations, an unexpected accident jeopardizes the operation.

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