Maryland tells the story of two estranged sisters who, when tragedy strikes, rediscover their love and respect for one another.

Jones will also star as one of the sisters, Becca, who, like her sister Rosaline (Eve Best), has forged ahead with her own family life and career.

The sisters have grown distant through time and circumstance but the discovery of a body of an older woman on Laxey Beach in the Isle of Man upends their lives and brings them back together.

When they fly out to the Isle of Man to repatriate the body of their mother, Mary, they learn that she has been living a double life. Leaving their father Richard (George Costigan) at home in Manchester, Mary had created another world for herself.

Stockard Channing will star as Cathy, Becca's late mother's larger-than-life friend.

Hugh Quarshie, Dean Lennox Kelly and Andrew Knott will also star.

“I’m so excited to be working with Anne Marie on this project. We both immediately knew how we wanted this story to unfold and to have the support from ITV and Monumental Television to let us tell it in our own way has been a breath of fresh air. 

“Maryland delves into family dynamics and the way in which we ‘label’ each other, sometimes never letting ourselves or our siblings break free from those roles. We look at how we grow apart from one another and how sometimes we don’t really know anything about the people we call our own.

“I love how complex sibling relationships can be and I’m thrilled we get to do it over three wonderful hours and not as a ‘side story’. Maryland is an uncomfortable, funny and sometimes difficult story with two sisters at its heart and we can’t wait to take our audience along for the ride.”

Maryland will film on location in Ireland for transmission on ITVX in 2023.