Office (오피스) is 2015 South Korean slasher-thriller film directed by Hong Won-chan and starring Go Ah-sung and Park Sung-woong.

Meanwhile, Choi's colleague finds out that Kim went back to the office after the crime, but the camera did not capture him leaving, leading them to suspect that he could still be in the building.

The plot increasingly focuses on Mi-rye, who has a poor relationship with her colleagues and feels overlooked when a new intern is hired.

Mi-rye works very hard, but her social skills are not well-developed, so her colleagues want to suggest the new intern for the permanent position.

However, the viewer learns during the course of the film that Mi-rye's neighbor saw her in a trance-like state and considers her a ticking time bomb.