Swimfan is a 2002 American teen psychological thriller film directed by John Polson and written by Charles Bohl and Phillip Schneider.

Shortly after, Madison obsesses over Ben—she stops by his house to meet his mom and bombards him with e-mails and instant messages.

The police suspect that Ben murdered Josh, so to prove his innocence, he breaks into Madison's room to find evidence, where he discovers a bottle of steroids and a creepy shrine of his belongings.

Christopher warns Ben of a similar case regarding a man named Jake Donnelly.

That night at the hospital, Ben and a few friends record Madison confessing her crimes, resulting in her arrest.

She escapes custody, then enters Ben's house and drags Amy to the school's swimming pool.

[3] It was partly financed by Furthur Films, a production company founded by actor Michael Douglas.

Swimfan opened in the number one spot at the North American box office in its first week of release, earning $12.4 million and beating My Big Fat Greek Wedding and City by the Sea.

[2] Director John Polson credited the film’s strong opening weekend to Fox’s marketing campaign.

"[10] Peter Bradshaw gave the film two stars out of five, calling it a "teen Fatal Attraction with an unappetising extra helping of Scream" and saying it lacks "the sardonic wit that parts of the script had seemed initially to promise".