Once Upon a Crime

While en route to Monte Carlo, Marilyn and her husband Neil encounter a variety of couples, including Julian and Phoebe, who are on a mission to return a wayward dog to its affluent owner for a hefty reward. However, their journey takes a dark turn when the dog’s owner is found murdered, making the group the main suspects in the case. Inspector Bonnard relentlessly pursues them, determined to uncover the truth behind the crime and clear the couples’ names amidst the chaos and mounting tension.