The Partnership is a group of consulting forensic psychologists based in Harley Street, London.

They deal with a hostage negotiation during a bank siege, assess an airline pilot who has averted three mid-air disasters, treat a police officer experiencing trauma, evaluate the background to a killing committed by a man suffering from epilepsy, react to a tragedy stemming from the premature discharge of an arsonist, and assess a man accused of master-minding a drug smuggling operation.

There are rotten apples in the barrel, and a vulnerable girl is sexually abused by one of the team.