![The Marlow Murder Club](https://image.tmdb.org/t/p/w500/1ViwT4iIsQpxvrVgIoAidOp5J33.jpg)
Retired archaeologist Judith Potts lives alone in a faded mansion in the peaceful town of Marlow, filling her time by setting crosswords for the local paper. During one of her regular wild swims in the Thames, Judith hears a gunshot coming from a neighbour's garden and believes a brutal murder has taken place.