My Happy Ending Season 1 Episode 4

Teo goes to confront the stalker who attacked Jae-won. But before Teo meets him, the stalker gets in an accident and becomes unconscious. Teo tries to find out who is behind the stalker, and Jae-won looks for Chi-young, Soon-young’s twin brother. She thinks that his existence is the only explanation for what has been happening to her lately. However, the investigation leads to another mystery.