“Crooked House” (*1/2 out of four) was a blah adaptation of Agatha Christie’s 1949 murder mystery about a former spy turned gumshoe (Max Irons) who is lured by his former lover (Stefanie Martini) to solve the murder of her grandfather before other family members (Glenn Close, Julian Sands, and others) and Scotland Yard (led by Terrence Stamp) begin to uncover clues which could lead to dark family secrets. Irons is good but it’s hard to care about anything involving the mystery when it’s all so dull. First-rate actors are unable to enliven or enrich tired material.