Facing the Enemy (2001)

Griff McCleary is a cop, now his son shot himself with Griff's gun. A year later both he and his wife are still reeling from it. Griff feeling shut out by his wife Olivia, decides to move out. Now he is investigating what appears to be a murder-suicide. He believes that there was no suicide. His investigation leads him to a woman named Nikki. It seems that Nikki is a little fragile and has not had much luck with men. When Griff helps her, she asks if she could stay with Griff, and after she and Griff sleep together, she learns that he is a cop and that he has been following her, distressed Nikki shoots herself. Griff is then suspended from the police force. But he is unaware that Nikki's partner & lover, Harlan, wanting to get back at Griff, is pursuing Olivia, who is vulnerable after Griff left her.