New Year's Eve. A time for celebrations. Resolutions. And big mistakes. A young woman vanishes after partying with her friends and now, 18 months later, skeletal remains of the missing girl are found. Is the killer a stalker, a sexual predator or a loved one? At the skeleton's discovery, Allie Kingston instantly makes the connection to the case doggedly pursued by her former mentor. Defying protocol she tells him about the find, earning her a dressing-down from her superiors. But the reprimand is worth it if it means solving the case. Can Allie succeed where her mentor failed? This high-profile disappearance has resonated with the public. The team re-traces her steps on that fateful night, but the passage of time has degraded evidence and memories. Does this explain the hazy recollections of the people she intercepted or is one of them a killer?