When a man is diagnosed with terminal cancer, he takes custody of his misanthropic teenage son, for whom quality time means getting high, engaging in small-time prostitution, and avoiding his father.

Kevin McCallister’s parents have split up. Now living with his mom, he decides to spend Christmas with his dad at the mansion of his father’s rich girlfriend, Natalie. Meanwhile robber Marv Merchants, one of the villains from the first two movies, partners up with a new criminal named Vera to hit Natalie’s mansion.