Julia Blake runs her own cleaning business. She has the unfortunate knack of getting herself involved in murder enquiries.
Julia provides moral support for her friend, Louisa, as they go to a slimming club meeting. They are shocked to discover that the slimming club venue has been taken over by the local amateur dramatics group. The am-dram group are performing a play written by the enigmatic Brandon Briggs. Julia soon suspects that Louisa and Brandon have a secret past. At the next meeting, Julia soon finds Brandon's murdered body hidden in a costume room. Julia discovers that more than one person had the opportunity, and motive, to kill Brandon - including her friend, Louisa.