Steed and Mrs Peel are investigating investigate a murder-for-hire organization fronting as a matchmaking bureau. The chief assassin is Miss Wakefield, who uses her beauty to lull her male suspects into a false sense of security, before shooting them.
Steed and Mrs Peel infiltrate the gang and eventually find enough evidence to bring them to justice. Miss Wakefield tries to destroy the files which incriminate her, but Mrs Peel barges into the room and knocks her across a table. Miss Wakefield attacks Mrs Peel with a letter knife, but is disarmed and then thrown over a sofa. In one desperate last attempt Miss Wakefield leaps at Mrs Peel, but is karate chopped in mid-air. She lands in Steeds arms in a senseless state, before finally slipping into unconsciousness.