Billionaire Benson Money is convinced that one or all his children are out to kill him for their inheritance. Mr. Money hires Jack Trane, a hard-nosed detective from New York City, and his young, brassy assistant Trudy to round up his children and their spouses, then ensure they show up at his Portland mansion by the weekend. That weekend, he plans to read the changes in his will to them. All his children are reluctant but agree to come. Along the way, Jack is being followed by a mysterious, thin man with white hair and a white, bushy mustache. Jack loves fine cuisine and street vendors, and throughout the week he samples as many as he can. By the time they all arrive at the mansion, all mayhem breaks loose. There is a murder and several attempted murders. In the end, Jack is forced to try to solve a mystery that nobody saw coming.