When the ghostly visions return to haunt Alison, Mike must reassure her that there is a rational, medical explanation – a comforting theory about which he could not be more wrong.

Alison’s attempt to win over their posh new neighbours with a swanky dinner party are thrown into chaos by Mary’s woeful catering and Robin’s desire to celebrate the lunar eclipse.

Alison and Mike are trying to find a semi-harmonious routine with the ghostly housemates of Button House. The ghosts have found a way to make their new situation work for them, while the couple are working towards a new money-making venture.

It’s a nervous Mike’s first night alone in the house when some uninvited guests set the ghosts on a mission to defend their treasured home.

When a documentary team comes to Button House to investigate a historical assassination plot, Alison and the ghosts are shocked to discover that it involved one of their own.

Alison has invited Lucy to come to Button House for a sleepover, but after a concerning meeting with the solicitor, Alison must work out if Lucy is really who she says she is.

When they discover a man living in a tent on their grounds, Alison and Mike - with the ghosts’ help - learn that they have more to offer this Christmas than they realised.