For all the deadly drama of John Stape's calamitous double life as Colin Fishwick, it turns into the funniest story of the week when former teaching colleague Brian comes in search of him, only to find romance with Julie.
This is comedy gold as John and Fiz try to split up the amorous couple, even making sure his wife Margaret walks in on them at an intimate dinner.
"Julie, love," Margaret sneers nastily, "book yourself an eye test and a course of self-esteem lessons." Ouch!