When a couple invites a boarder into their home, they're hoping for a financial fix. They get a nightmare instead.

Kate and Mark are barely speaking. An affair has fractured their marriage, and a looming mortgage crisis is about to break them. Desperate, they open their home to a boarder, hoping to ease the financial strain. Liam seems like the perfect solution: quiet, friendly, and willing to help out. But Kate can't shake the feeling that something is wrong. Small items go missing, and Liam's kindness feels forced, his gaze too sharp, too knowing. He befriends Mark but preys on Kate, his presence a silent threat she can't explain.

When Mark is suddenly hospitalized from poisoning and Kate is under suspicion, she realizes the danger is far greater than she ever imagined. Alone, terrified, and hunted, she must face a man who has been watching her for years—a man she doesn't know, but who knows everything about her. As the line between sanity and paranoia blurs, Kate must fight not just to save her home and her husband, but to survive the dark obsession of a man who sees her not as a stranger, but as his destiny.

Roommate Wanted is a heart-pounding psychological thriller about a house divided, a marriage on the brink, and a stalker who is already inside.