Two roommates, Michael and Jimmy, are invited to visit Michael's elderly aunts, Martha and Barbara Farrington (the Skipper), at their isolated island mansion on Long Island Sound. Aunt Martha likes to play matchmaker, so has invited young Jude Blinshop, while Michael has brought along his own choice in female companionship, temperamental Gay Palmer. A terrible storm washes out the bridge, but the situation becomes dire when a guest is found murdered...