Child in the Night (1990)

A child psychologist, Hollis who's marriage collapsed after she learned she was barren, bonds with Luke Winfield, who witnessed his father's murder at the hands of rain-slicker wearing killer with a cargo hook. Along the way she befriends Detective Bass as he investigates a series of homicides, each with the same M.O. As Hollis gets closer to Luke she discovers some trouble family secrets ensuring she is next to be slain.