Bob McGraw is in his 12th year of college, goofing his way through life. Bob, Irwing, Gonzer and Max are the four losers forced and bribed to represent their university in an intercollegiate raft race. Forced and bribed into this role, they make some friends, the lovely Heather Merriweather, but mostly enemies, among others a whole team of marines, and preppy IVY-leaguers determined to win.

New York's Odyssey Detective Agency is hired by two different clients to follow two women suspected of infidelity. Ladies' man John Russo trails Angela Niotes, the elegant wife of a wealthy Italian industrialist, while Charles Rutledge and Arthur Brodsky follow Dolores Martin, the beautiful young wife of a jealous husband. Their respective cases are complicated when John falls for Angela, and Charles falls for Dolores.

Hollywood. 1955. Faced with two inexperienced actors, a film director encourages the leading lady and leading man to fall in love in real life so as to provide the heat needed for the inner film's romance, which enrages the actress' possessive gangster boyfriend, who happens to be the film's financier.

Robert (John Ritter) is a lawyer who takes more than professional interest in the new investigator hired by his firm, Isobel (Karen Carlson). As the two start working together, a romantic relationship gradually develops between them. But there's one slight problem: Isobel is 43 years old, while Robert is 29. The difference in age increasingly becomes a barrier to their romance -- especially when Robert discovers that Isobel has a 24-year-old daughter.