Sebastian is an undisciplined mathematics genius who works in the "cipher bureau" of the British Intelligence. While cracking enemy codes, Sebastian finds time to romance co-worker Rebecca Howard.
Candy is a fetching unwed young lady with a penchant for pregnancy. Her adventures begin when she leaves her sheltered boarding school background for Paris. The result is the birth of Valentine nine months later.
An anthology of 1920s set plays and musicals, transmissioned from 10 September to 10 December 1968 on BBC One.