Adam and Margo's housewarming party is a success. One couple linger after the other guests, revealing themselves to be wealthy neighbors. As one night cap leads to another, Adam and Margo suspect their new friends are duplicitous strangers。A pair of whacked-out cartoon-like exterminator/hitmen kill the owner of a burglar-alarm company, and stalk the partner who hired them, his wife, and a nerd framed for the murder, who tells the story in flashback from the electric chair.。