Inspector Michael Kenyon (Nigel Patrick) is a Narcotics Agent who, with the aid of a titled bird-watcher, attempts to trap a brother/sister drug-smuggling team.

After a successful operation against drink smugglers, Customs and Excise get wind of a planned large illegal drug shipment. An Agent is sent to Cannes to follow the brother and sister who are apparently involved, though he starts to get rather closer to the attractive young lady than he planned. The trail leads via a fashion house to a freighter bound for the Pool of London, and the net starts to close in.—Jeremy Perkins {J-26}