In this enormously entertaining period romp, the chintzy propriety of a demure corner of 1920s Sussex, the seaside town of Littlehampton, is rocked by a plague of elaborately filthy poison pen letters. Edith (Olivia Colman), a God-fearing spinster, is the initial target of the missives, a cross she bears with simpering saintliness. And her next-door neighbour, a rambunctious Irish immigrant named Rose (Jessie Buckley) seems to be the obvious culprit. But Woman Police Officer Gladys Ross (Anjana Vasan) suspects that the case is not as clear-cut as it initially seems. The latest film from Thea Sharrock (Me Before You), Wicked Little Letters is, we are told, "more true than you'd think". Whether or not there's a factual basis to the story, it's undeniably an absolute blast.— Wendy Ide, Screen Daily