Someone is killing MI5 agents.

The MI5 Commander instructs inept Charlie Boyd and his fellow agent, Barbara Witherspoon, to find out who is doing the killing and protect other agents from death.
Their search for the murderer takes them across London, into the seedy nightclubs of the East End, from agent’s apartments to motels in the search for the person responsible. With numerous attempts made on his and Witherspoon’s life, Boyd evades the wrath of the killer by more luck than judgment.
Can they discover the identity of the killer before more agents are murdered? Will they be able to bring the murderer to justice?