A killer is on the loose, and an FBI agent sifts through clues and learns that the bloodthirsty felon’s victims of choice are other serial killers.

Greg Focker is ready to marry his girlfriend, Pam, but before he pops the question, he must win over her formidable father, humorless former CIA agent Jack Byrnes, at the wedding of Pam’s sister. As Greg bends over backward to make a good impression, his visit to the Byrnes home turns into a hilarious series of disasters, and everything that can go wrong does, all under Jack’s critical, hawklike gaze.