For the clan known as Brewster, insanity runs in the family. Two sweet old aunts take it upon themselves to poison lonely old men with nothing to live for, as an act of charity. Their nephew Mortimer has just got married, and is trying to negotiate his way around the shenanigans of the house, while trying to keep his new bride from fleeing. Shady brother John returns from a world adventure involving using corpses to change his appearance to allude capture. The merry mayhem continues with bugle-blowing brother Teddy who is charged with burial duties.