Mare of Easttown is a mystery crime-drama that stars Kate Winslet as a detective attempting to solve a murder as her life crumbles around her. Marianne "Mare" Sheehan is assigned to investigate the murder of one girl while trying to tackle a cold case of another missing girl. Having recently lost her son, Mare's world is steeped in chaos as she attempts to reclaim her life in the eyes of the town - and herself.