A dominatrix and her wealthy client engage in the most elaborate power struggle during one night in a luxury hotel suite in “Sanctuary,” director Zachary Wigon’s twisted psychological love story / thriller. The film’s tone is uneven and inconsistent and the direction is lacking, but the two lead performances are terrific. Hal (Christopher Abbott) is the heir to a major company and will soon be taking over as CEO, which means it’s time to cut ties with the longstanding professional relationship he’s had with a dominatrix, Rebecca (Margaret Qualley). When he tries to break it off with an expe...