[upd] - Ghosts S04 Dsrip

However, Series 4 carried a unique weight: it was announced as the final series. Unlike many sitcoms that drag on until they lose their spark, creators Mathew Baynton, Simon Farnaby, Martha Howe-Douglas, Jim Howick, Laurence Rickard, and Ben Willbond made the decision to end the story on their own terms.

: Explores Sam's relationship with her visiting father. ghosts s04 dsrip

Here is a detailed piece on (BBC).