Who's in bed with the butler?

A California billionaire has bequeathed all of his assets to his only daughter, Constance - except the $22 million yacht he wanted Josephine to have, a $25 million art collection left to Renee, and some priceless antique automobiles willed to Marjorie. Constance arrives at her father's mansion with her lawyer, determined to find out who these women are and buy them off or contest the will. She also discovers that the yacht, the art, and the cars have vanished. Could the butler be behind the shenanigans? Does the elderly, deaf housekeeper really have a pet rat? Can the bumbling detective hired by Constance really be so inept, linguistically as well as professionally? And why has the butler hired an actress to play his wife?