A young Calgary woman goes missing for days. Her grandmother felt something wasn't right. She called Taylor Toller's friends and family and even reported her missing to police. But there was no sign of the 24-year-old. Meanwhile, a call to 911 led police across town where they discovered a couple in their 50's dead in their home. Learn the tragic connection between the two cases and follow along as police uncover evidence of a senseless killing spree.