Felicity Montagu, best known as Alan Partridge’s long-suffering PA Lynn, has created a new four part comedy-drama series along with Earache’s Katherine Jakeways and her real-life daughter Olivia Nixon.

“Guilt Trip” follows the story of Ros and her daughter Laura, as they take part in a two-week sponsored walk, covering the full length of the Thames Path. Laura’s father and Ros’ ex-husband has recently passed away, and they want to raise money for his charity.

The series explores the relationship between mothers and daughters and how it can change through the adversity of divorce, bereavement and having to walk 184 miles together because it seemed like a good idea at the time.

Also catch Katherine as Laura’s step-mother, Ruth.

“Guilt Trip” starts on BBC Radio 4 on Wednesday 27 July at 11.30am