Dispatched from his basement room on an errand for his widowed mother, slacker Jeff might discover his destiny (finally) when he spends the day with his unhappily married brother as he tracks his possibly adulterous wife. Jeff, at 30, lives in his mom's basement, unemployed, looking for signs about what to do with his life. He answers a wrong-number call for "Kevin". Later, on a bus, he sees someone wearing a jersey with "Kevin" on the back. Jeff follows him. Meanwhile, Jeff's brother, Pat, a tone-deaf salesman, upsets his wife by buying a Porsche they cannot afford; Pat runs into Jeff soon after and they see Pat's wife with another man. At her job, Jeff and Pat's mom receives e-mails from a secret admirer; she tries to figure out who it is. Misunderstandings, errors, and confrontations abound. A backup on the Lake Pontchartrain Causeway brings things to a head.