When Darren Silverman (Jason Biggs) meets psychologist Judith Fessbeggler (Amanda Peet) they quickly fall in love and soon begin talking of marriage. However, when Judith breaks up Darren's Neil Diamond covers band, his bandmates J.D. (Jack Black) and Wayne (Steve Zahn) realise that she is evil and must be stopped. The pair then set to work with a plan to get Darren back together with his former girlfriend Sandy (Amanda Detmer); but Judith realises what they are up to, and proves more than a match for their underhand tactics.
