When Casey Jones strikes up an unlikely friendship with swimming captain Jasper Hale, the last thing she expects to be doing is uncovering a mystery surrounding one girl's suicide. But when the clock strikes midnight and another body is being pulled out from the water, Casey takes it upon herself to pursue the clues laid out for her to follow. But nothing is ever that simple, and Casey soon realises that maybe the key isn't finding out why she jumped, maybe it's finding out who pushed her.