It is Jack's , Megan's son, first birthday party and the atmosphere is very tense.

But Megan is being distracted by the unusual amount of telephone calls that her mother is getting.

Surely Mum hasn't got a boyfriend has she? But it turns out that she has - and what is more, he is moving in.

This really shakes up the dynamics of the house-hold, which Mary Hooper details with her accustomed very acccurate and precise eye for domestic detail.

A must for all Megan fans.