John, depressed over his ex-wife's upcoming remarriage, reluctantly attends a party where he awkwardly mingles until he meets Molly. They hit it off instantly, and a romantic relationship quickly ensues. However, Molly insists on keeping aspects of her personal life private, which piques John's curiosity. Deciding to find out more, John follows her home one night and is surprised to discover that she lives with her grown son, Cyrus. Cyrus, who initially appears overly cordial, quickly reveals himself to be clingy and manipulative, displaying an unnerving attachment to his mother that borders on the possessive.

As John becomes increasingly suspicious of Cyrus’s intentions, he tries to confront Molly about her son's behavior, only to find himself caught in a psychological battle with Cyrus. Despite many attempts to sabotage their relationship, John remains determined to be with Molly, but finds it challenging to break the deep emotional bond between mother and son. Tensions rise as John navigates the complexities of this unconventional family dynamic, desperate to find a way to integrate himself into their lives without severing the ties that bind them.