On their way to Monte Carlo, Monaco, Marilyn and her husband, Neil, meet several other married couples, including Julian and Phoebe, who are traveling with a lost dog they plan to return to its wealthy owner for a large reward. But, when the dog's mistress is murdered, the travelers become the prime suspects, and Inspector Bonnard is determined to track them all down.
John Candy
Jim Belushi
Cybill Shepherd
Sean Young
Richard Lewis
Ornella Muti
Giancarlo Giannini
George Hamilton
Roberto Sbaratto
Joss Ackland
Ann Way
Geoffrey Andrews
Caterina Boratto
Elsa Martinelli
Riccardo Parisio Perrotti
Nino Richelmy
Maria de Candia
Giuseppe Perruccio
Alessandro Maria Amen
Franco Angrisano
Georges Carlo
Benedetto Fanna
Christian Bianchi
Marco Martinozzi
Charles Dubourgeot
Eugene Levy
Erminio Bianchi Fasani