Mr. and Mrs. Moss are the proud new owners of an old abandoned inn which they immediately want to restore and turn into a nightclub. Unfortunately, they're so busy overseeing suspiciously inept repairmen that they pay little attention to the local legend that tells of a treasure hidden somewhere on the estate. So when a severe storm develops forcing an unusual assortment of guests to stay the night along with the questionable workers, it doesn't take a genius to guess a murder will take place. With no help available, the hapless hosts take it upon themselves to find out whodunit. Their bumbling incompetence brings about a chain of unexpected events that climaxes in a hilarious ending.