Written by Colman’s husband, debut screenwriter Ed Sinclair, Landscapers follows the true story of Susan (Colman) and Christopher Edwards (Thewlis), a seemingly mild-mannered married couple who have dead bodies buried in their back garden in Nottingham.

Writer-director Will Sharpe (Flowers) will direct the four-part series, which will also star Kate O’Flynn (Bridget Jones), Dipo Ola (We Hunt Together), Samuel Anderson (The History Boys), Karl Johnson (Hot Fuzz), Felicity Montagu (I’m Alan Partridge) and Daniel Rigby (Eric and Ernie).

Landscapers tells the extraordinary story of a couple who have been on the run from reality for fifteen years. When Christopher makes a disconcerting call to his stepmother, the couple's role in a horrific crime that has remained undiscovered for over a decade begins to come to light.

As their relationship comes under the glare of a full police investigation, the devoted couple must separate for the first time in their marriage.

Using the power of Susan’s extraordinary imagination, the pair have managed to escape into a fantasy world offering sanctuary from the horrors of life and their crippling guilt, but their missing grip on reality is beginning to undo them completely.

Landscapers will air on Sky Atlantic and NOW later this year.