Conversation Over a Corpse (1956) Cissie Enright is not exactly thrilled with the idea of poisoning Mr. Brenner, the real estate man. But her sister, Joanna, insists that it's the only way. Otherwise, he is going to take the house from them. Cissie reluctantly poisons the tea. Mr. Brenner arrives with no idea what is in store for him. But things don't go as Joanna or Cissie had planned either.