清明过后,春天的样子在位于中国北疆的内蒙古自治区才逐渐显现:桃花朵朵开,候鸟北归来。抵在树干On June 30th, 2018, Officer David Serling went missing inside an undisclosed abandoned hospital. Using his recovered body cam footage, his wife attempts to piece together what happened to him on that horrible night.