When I was a kid my mother kept shooing me out of the room whilst she watched a movie on tv. It was the late 90s when this happened. From the scenes that I saw it was a murder mystery that some cops were trying to solve. Farely dark and gruesome. Eye gouging and lots of psychological terror. At one point clues for the case were in a train car at the bottom of the sewer I think. At the end I think the bad guy as a doctor and was going to cut up one of the cops in a hospital bed or something to that effect.

Would love to figure out what this movie is and watch it.