Nicola Walker and Sanjeev Bhaskar will start filming the new season of Unforgotten later this month.

The new episodes will tell a brand new story from creator and writer Chris Lang, once again exploring the fallout from the investigation into an historic murder case.

The crime drama launched on ITV last October and the first season has now been sold into 126 territories worldwide.

> Buy Season 1 on DVD on Amazon.

Season 2’s “complex and emotional plot” will take viewers across the country to the Cotswolds, East London, Salisbury and the South Downs. The primary theme will be “our society’s relationship with evil.”

Writer Chris Lang commented: “I am so excited to be making a second season of Unforgotten. Once again we have managed to assemble a jaw dropping cast, alongside a hugely talented production team, and I cannot wait to see the stories I have created, start to come to life on screen.”

Executive producer Sally Haynes added: “We were delighted at the response to Unforgotten and it’s fantastic to be bringing back Cassie and Sunny to investigate a different historical murder. As with the first series Chris has written a complex, emotional and surprising story that challenges our heroes as they uncover long hidden secrets in the lives of the suspects”.

Joining Nicola Walker and Sanjeev Bhaskar in Season 2 are Mark Bonnar (Catastrophe), Rosie Cavaliero (Prey), Lorraine Ashbourne (New Tricks), Badria Timimi (Killing Jesus), Charlie Condou (Casualty), Holly Aird (Identity), Nigel Lindsay (Poirot), Peter Egan (Downton Abbey), Will Brown (Bystander), Wendy Craig (Doctors) and Bryony Hannah (Call the Midwife).

The official synopsis for Season 2 reads: “The story begins with the discovery of a body. This time the perfectly preserved remains of a middle aged man found in a sealed suitcase in the silt of the River Lea in northeast London. As Cassie and Sunny begin the complicated task of trying to identify the victim, we will meet four unconnected people who we suspect are linked in some way to the victim.

“The dead man turns out to be David Walker who disappeared in 1990 and left behind a wife, who has since remarried, and her son who is now in his early 30s. Their story will run across six episodes and will draw upon very current themes and jeopardy.

“As the investigation progresses, we’re introduced to Brighton-based lawyer Colin Osborne, paediatric nurse Marion Kelly, school teacher Sara Hamoud and DI Tessa Nixon, the victim’s wife, a respected police officer months away from retirement.”

Are you looking forward to the return of Unforgotten? Let us know below…