Like THE SNIPER and HE WALKED BY NIGHT, this film follows both the police and the serial killer they're trying to catch. And it lives up to that standard of quality. As usual, the procedural elements are the weakest parts, with nice attention to detail but rather dry and routine (the corny voice-over, the forensic evidence, the false confessions, the rounding up of the usual suspects, the psychological profiling, the dead-end leads and near misses). But the film absolutely shines when dealing with the killer. Adam Williams (recognizable as the baby-faced baddie from NORTH BY NORTHWEST) is creepy without being at all silly, an air of quiet danger hangs over him. There's a thick tension and dread as he stalks his victims and evades the authorities, with those conflicted moments when you almost don't want him to get caught. The supporting performances are not as memorable, but overall quite solid without anything to complain about. The photography is generally excellent, with terrific use of close-ups and a lot of good location work. Nice score as well. Well-paced and riveting film with some very fine qualities, a nice hidden gem. I'll be buying this one.