The Frozen Ground (2013) on Netflix

In 1983, in Anchorage, Alaska, the young prostitute Cindy Paulsen is found cuffed in her apartment. She claims that she has been raped and threatened by Robert "Bob" Hansen, an apparently respectable man with a wife and children. The police officers don't believe her, Hansen isn't charged, and Cindy returns to the streets. Meanwhile, Sergeant Jack Holcombe is assigned to investigate the murder of seven young women, and the detective that found Cindy secretly sends her case to him. Jack believes that Bob Hansen is the serial killer, but lacks the evidences to arrest him. Jack tries to earn Cindy's trust so that Hansen can be charged, but she is afraid and tries to leave Alaska.