Unreasonable Doubt begins with an upset woman bringing home her ailing baby following a doctor visit and the husband putting him down on a metal tray near an old TV where the wires are exposed. When he leaves the room, the baby is electrocuted and dies which places suspicion on the father as to whether he deliberately killed the baby who would have continued to deteriorate. A handicapped colleague (John Rubinstein) in the coroner lab works with Quincy (Jack Klugman) on the case and becomes convinced that the father is guilty and goes after him mercilessly in the courtroom.
While there is a mystery featured in this story, this is totally overshadowed by the sheer stupidity of some of the characters, namely all of the family members and their maid. Here we have supposedly wealthy and educated people that even have a servant in their house, and the father lays his sick infant on a metal tray alone near exposed wires. Are you kidding me? Tell the maid to stop vacuuming and watch the child for a few minutes or even your loafing teenage son you moron! I won't give anything away, but there is even further nonsense with them about who thought who did what which comes across as a huge cluster. The resolution is also very anti-climactic and will leave you marveling at the level of stupidity.
Overall this another bad Season 8 episode with a terrible plot, disappointing mystery and a rather annoying guest star who is doing the lecturing and finger pointing rather than Quincy. Do yourself a favor and skip this one.