Seamus and Janet meet in Belfast and, after a glorious night of laughter and sexual tension, Janet makes a shocking suggestion.

Seamus' girlfriend whisks him away for the night and drags Janet along, too. An agonising night of lies and subterfuge ensues.

At last, the day has come: the affair is on! But when they realise they've both 'caught feelings', things take a different turn.

Janet visits London to be with Seamus and have some touristy fun. But it's clear the lovers are keeping secrets from each other.

It's over between Janet and Seamus, but Janet's boss urges her not to give up. Can they find a way back to each other?