Synopsis: No. 205 Go Eun-Hye

He had been living as a killer known as number 205, but one day, the landlady ordered him to kill number 204, whom he had followed like his own brother, with his own hands. After being consumed by regret, one day, the landlady’s daughter, Go Eunhye, moves into room 204 and suggests to number 205 that they kill the landlady together...