In the confines of a starkly lit room, a woman holds her shirt up to expose her bare back to the camera. She is bone-weary, hollow-cheeked, almost skeletal. When the photographer and documentary filmmaker Chan Hau Chun first took this grainy black-and-white image she didn’t realize that one day she would be exposing her mother’s emaciated body to the public. And when that moment arrived, she was overcome by dread. The photograph appears in her award-winning documentary 32+4 (2015), a raw portrayal of intergenerational family trauma that she completed during her final year at Hong Kong’s City University. She started making a record of her family life after her parents’ divorce, several years earlier, but never dared show anyone until she was “forced, at last,” as James Baldwin once wrote, “to tell the whole story, to vomit the anguish up.”