Hawn is a librarian who picks up a hitchhiker which leads to nothing but trouble. She becomes involved with San Francisco detective Chase in an effort to expose a plot to kill the Pope during his visit to the city. Also involved is Moore as an English orchestra conductor with some kinky sexual leanings. Chase is charming (no mugging here) and Hawn both bubbly and brave. A big winner at the boxoffice; features Barry Manilow's hit tune "Ready to Take a Chance Again."