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.

Cast:Samantha Bond, Jo Martin, Cara Horgan, Natalie Dew,

Genre:Mystery, Drama,

country:United Kingdom, United States of America,

Production:UKTV, ITV Studios, Monumental Television, Masterpiece,