The Alphabet Killer plot
"Based on a true story."
Megan Paige is an extremely driven policewoman in the city of Rochester. Her fiancé Kenneth works for the same force. The two deal with a horrific case in which a 10-year-old girl was raped and murdered. It turns out to be a serial killer and Megan becomes completely obsessed with the case. So much so that she has delusions, becomes schizophrenic, breaks off her relationship and is admitted to an institution. Two years later, however, a similar murder takes place and the now reasonably recovered Megan will play a role.