The 46-year-old actor Oh Jun-koo has been struggling for a long time without landing a part. These days, he barely keeps a foothold in theater by teaching drama part-time to college students who show little interest. At home, things are no brighter; his wife Mig-yeong, who is socially ambitious and perpetually disapproving, often works late, and their son Hyeon-jun is in legal trouble after setting off fireworks on an apartment rooftop.
As Mig-yeong pushes for a move to a more upscale neighborhood and enrollment of their daughter Hyeon-seo in an expensive school, Oh receives a promising acting offer. Around the same time, he learns he is the top candidate for a full-time teaching position, which would mean abandoning acting permanently. Soon after choosing financial stability over his passion, Oh runs into a major complication: he witnesses what appears to be Professor Cho sexually assaulting student Kim Ki-pum.