Exotic dancer Marilyn moves into the house with Charlie, a python that she uses in her routine. Although Charlie is harmless Philip persuades Rigsby that he is a Fawcett's python, one of the deadliest in the world. Of course he escapes and the boys scare Rigsby with a stuffed toy python. When Douglas the curate comes round for his singing practice with Ruth, Rigsby decides to play a joke on them with the toy python but of course he ends up handling Charlie.