Noah is a straight, nerdy student whose stepbrother, Liam—a charming, playboy ice hockey captain—keeps stealing his girlfriends and messes with him both at home and school. A drunken threesome setup turns into a heated bet that changes everything. Noah discovers the real reason: Liam is secretly obsessed with him. After Liam saves Noah from bullies, Noah decides to make peace with Liam and tries to straighten him out. But what Noah doesn't realize is that he's walking right into Liam's trap—and slowly being seduced by the one person he should hate most.