A new adventure awaits as DI Humphrey Goodman and Martha leave London for Devon. Humphrey dives into his first case, which involves an unusual prime suspect: a 17th-century witch.

Humphrey and his team are baffled by the mysterious disappearance of an entire family. Martha prepares for the launch of her café but is thrown when a face from the past shows up.

The community of Shipton Abbott is rocked when a beloved painting disappears in a seemingly impossible heist. Humphrey tries his best to find some common ground with Archie.