When Private Detective, Fran Zinger is hired by Eleanor Vandercliff to investigate the disappearance of her mother in law, Priscilla, Fran realizes she is a little out of her element, normally taking cheating spouse cases. Determined to put her Zinger Dinger Detective Agency on the map, she accepts the case. Eleanor is sure her husband is behind it!
Lord Montgomery Thorndike, proprietor and sole employee of the Thorndike and Associates Investigation Agency jumps at the chance when Clifford Vandercliff hires Lord Montgomery to investigate his wife as the one behind his mummy's disappearance.
Montgomery and Fran clash in the wine cellar of the Vandercliff's estate, oddly attracted to one another. But with so much at stake for both agencies, they are in a rush to solve the case of the missing Priscilla Vandercliff.