Betty is looking forward to her summer share at the ocean. But Trudy, whom she knows only slightly, chatters incessantly; and then there are the other housemates—sexy lout Buck, who's pathologically on the make with women all the time, and sweet, withdrawn Keith who carries a shovel and a mysterious hatbox and just may be a serial killer. Then the emotionally anarchic landlady, Mrs. Siezmagraff, moves in too; and she invites a crazy derelict to dinner, and, well, the vacation becomes more and more of a strain for poor Betty. Not to mention there seems to be a laugh track coming from the ceiling that no one seems able to shut up. Death, destruction, mayhem—Betty finds it all in her seaside retreat.