Actor Jack Donnelly heads to “Fatal Attraction” territory in “Pretty Thing,” making his feature-length screenwriting debut with the endeavor. It’s a study of lust gone wrong, this time involving a sexually adventurous woman and the younger lover she dares to momentarily possess, out to experience the thrill of the hunt. What she actually receives in return is a more complicated relationship that Donnelly takes his time examining, going slow-burn with the picture as it gradually visits other perspectives and tones. Director Justin Kelly (“JT LeRoy,” “King Cobra”) does a fine job sustaining the mysterious ways of “Pretty Thing,” generating a sense of steaminess as the offering delivers early eroticism. He also stays with the turns of the material, capably selling the rising distress felt by both characters as they confront the reality of their pairing. Donnelly generates uneasiness, and Kelly manages to sustain it all the way to the final minutes of the film. Read the rest at Blu-ray.com