The fourth episode of series 1 will air on BBC One on Monday May 6th 2019 from 20.30 P.M. to 21.00 P.M. (UTC).

Summary from the BBC:

Fortune smiles on a cash-strapped Mike and Alison when a TV company come calling, looking for an old house in which to film their period drama. But to get the money in the bank, Alison must ensure the shoot goes without a hitch, despite a horde of curious ghosts, the house’s crumbling floorboards and her crippling crush on the show’s lead actor. Meanwhile, Thomas and Lady Button learn the meaning of a ‘free pass’, and Julian tries his luck on the gee-gees.