Eiji Urashima seems like a typical university student. But most people don’t know he is the son of a serial killer. He also often suffers from blackouts and memory loss. He worries he may be sharing his life with an alternate personality, and his fears escalate when a new murder takes place which exactly matches the style of his sadistic father. (Synopsis)
The Killer Inside is a series that creeps up on you. It seems quite simplistic at first, but then there were some unexpected twists in the second half. The acting is fine, but not standout, and the pacing moves along pretty well throughout. Overall, it is not a series I would rush to rewatch but it's a pleasing crime thriller that managed to keep me guessing until the end and which was useful for Japanese listening practice too. I am giving it 3.5 stars.