Im Sung-eon

Feeling trapped in a stale four-year relationship and reluctant to take the next step into marriage, Jung In stumbles into Ji Ho's pharmacy one morning, nursing a hangover after a night of drinking. As she tries to reassemble herself before going to work, Jung In discovers that she has forgotten her wallet and cannot pay. Ji Ho kindly helps her. What begins as an innocent daily interaction, develops into a deeper attachment as the two find themselves drawn to one another (mydramalist.com)

A man is brutally murdered during coitus in a hotel room. Gu-ho, the detective in charge, begins to suspect Soon-ae, who runs a butcher's shop. As he investigates Soon-ae, Gu-ho gradually falls for her.