When a step out of line means a fight to the death… London 1967. A working girl is brutally murdered in a Soho club. Rina Walker takes out the killer and attracts the attention of a sinister line-up of gangland enforcers with a great deal to prove.

When a member of British Military Intelligence becomes aware of her failure to fulfill a contract issued by an inmate of Broadmoor, he forces her into the deadly arena of the Cold War, with orders to kill an enemy agent. Rina needs to call upon all her dark skills, not simply to survive, but to protect the ones she loves.