Despite a good cast, this one never gels properly. It falls down every time were return to the mechanics of the case being investigated. The final confrontation is particularly sloppy. A pity. The best thing here is Forrest Tucker as the flawed and dangerous detective on the trail of the murderer. His unhappy home-life also makes for some strong scenes. A few weeks earlier the show had tried a spin-off about a copy in Las Vegas. And a boring, generic attempt it was. This character, however, would be ideal for a spin-off. But something that dark would never get made in 1976. A shame, because I could watch Tucker playing this role again. 7/10