Alan Hook has two problems in his life: his jovial but infuriating father Brian, and his son Vincent. In this episode it's Vincent's 18th Birthday.
Beryl agrees that Vincent can have a party in the house, leaving Alan with no alternative but to spend a restful evening at his father's place.
While Alan bemoans the lack of discipline in society, Beryl makes an exciting discovery about Vincent. Brian has a secret in his past that affects them all.
Alan's father re-enters Alan's life due to a recent bout of illness. Alan then goes through a style crisis made worse when his dad takes him to Mr Nigel's shop.