Career con artist Roy Courtney (Ian McKellen) can hardly believe his luck when he meets wealthy widow Betty McLeish (Helen Mirren) through a dating website. Carefully crafting a scheme to fleece her of her millions with the aid of his partner in crime (Downton Abbey’s Jim Carter), Roy is surprised to find himself caring for the kindly Betty and second-guessing his plan. Distracted by the reappearance of a past patsy and keenly watched by Betty’s wary grandson (Russell Tovey), Roy’s dilemma will keep you guessing in Bill Condon’s twisted and tricky British thriller.