Set in the west London suburb of Putney. Paul Slippery a sexually frustrated, red-tape wrapped GP is jealous of his three promiscuous teenage sons – Rory, Jack and Edwin – and thinks his wife Estelle may be having a lesbian affair.

Paul promises Estelle that he will cook a romantic meal, but has difficulty getting everyone out of the house. When Estelle's boss asks her to take Pilfrey out to lunch, Paul jumps to the wrong conclusion.

Paul is feeling paranoid. Dr Pilfrey is busy sending love e-mails to Paul's wife, Estelle, and Paul's youngest son Edwin has been forging encouraging replies.

Edwin makes Paul buy from him a love potion which makes Paul thinks that it will help him to have sex with Estelle but gains the opposite resault.

In attempt to reconcil with her he sneaks into a lecture that Estelle is having for women. Also, Laura and Lucy introduce Woj to Edwin.

Paul suspects Estelle is having an affair which makes him getting himself by mistake to an AA meeting which makes everyone to think that he is an alcoholic.