Who breaks the rule shall take responsibility for it.
There is a superstition in Korea that no one should visit a wake when there’s a baby under three weeks among the family members; but Woo-jin doesn’t believe it. He receives a text message that his ex-girlfriend passed away, and despite his wife’s dissuasion, he goes to the wake and mourns for her. After that day, strange things start to happen, and his baby becomes sick without reason. His wife now demands him to transfer this misfortune to other people by stealing a few things- two things from any store, one thing from a stranger.