Ben Cronin has it all: the admiration of his many friends, a terrific girlfriend, and he's on the fast-track to an athletic scholarship. Not that it's been easy - every day Ben juggles countless hours in the pool (training for a critical swim meet), with a job at the local hospital, and finding quality time with his high school sweetheart, Amy. Ben's rock-solid, promising future and romance with Amy are turned upside-down with the arrival of Madison Bell. Madison, the "new girl in town," quickly sets her sights on the impressionable Ben. While their first few meetings are innocent enough, the obsessive and seductive Madison wants more - much more. Seducing Ben is only beginning; she becomes his biggest "fan" and most unexpected nightmare, as her obsessions quickly spiral out of control into betrayal, madness and, ultimately, murder.