两个女人寻找一个阴险的源尖叫，每天晚上同时挑战创意的鬼，面临着推动其受害者陷入疯狂的超凡脱俗的威胁。

After Lily, an insomniac young filmmaker, starts to hear a recurring sinister scream every night outside her apartment window, she teams up with a friend Hannah to try and track down the source of the terrifying noise. Soon the intrepid duo’s investigations lead them into a dark and sinister tangled web involving shadowy figures and a deadly supernatural force beyond their comprehension.