In a peaceful retirement village, four unlikely friends meet weekly in the Jigsaw Room to discuss unsolved crimes; together they call themselves The Thursday Murder Club. Elizabeth, Joyce, Ibrahim and Ron might be pushing eighty but they still have a few tricks up their sleeves.
After a difficult pregnancy, Esther is grateful that her husband Robin offers to put his career on hold so she can return to the job that she loves. But Esther finds leaving her daughter Riley behind more challenging then she'd thought. And soon the new imbalance in her relationship with Robin brings old tensions to the surface.
Scarlett’s golden life suddenly unravels when someone sends a shocking video of her to everyone she knows. The only people who claim they haven’t seen it are the friends in her new mothers’ group: Cora, Emma and Asha.