No, this isn't the femme fatale romance the word "dangerous" suggests. Instead, the eponymous character is a mildly retarded woman, Martha (Winger), whose simplistic view on life places her in ethically compromising positions. When a hunky Irish handyman (Byrne) comes on the scene and seduces both her and the aunt with whom she lives (Hershey), Martha awakens to feelings she has never experienced. Winger's performance is both sensitive and provocative, but is wasted in a film filled with two-dimensional characters, and really, not too much of a point. Adapted from a novel by Mary McGarry Morris. Screenplay by Foner, wife of director Gyllenhaal.