Mel and Howard return home to find Cassie in a compromising position in their bedroom. In desperation Howard agrees to meet with Cassie to try to put an end to her mad interfering but his plan goes horribly wrong, leaving a distraught Mel searching for her fiancé.
Later Howard is determined to put things rights with his future in laws, and brings thoughtful gifts to soften the blow of Binky's demise. Unfortunately the presents get muddled up with a joke gift for the best man and once again Howard is regarded with horror by Dick and Angela.
Things turn from bad to worse as Uncle Fraser (Ronald Pickup) arrives for the wedding and the family prepare for Binky's funeral.
What more can possibly go wrong for Howard?