官场共妻大交换Shipton Abbott continues to keep DI Humphrey Goodman and his team busy, with a baffling new crime each episode. From a death on a steam train to a missing teacher, the team have their work cut out. Even more so with Police HQ’s threat of the local station house closure hanging over them – the pressure is on to get results.　　Meanwhile, Humphrey and Martha’s journey to find their own version of a family continues as they explore the possibility of fostering. Martha’s mother Anne throws herself into the world of online dating, and a well-meant gesture from Esther’s daughter Zoe threatens to uncover a long-held secret…