Television drama, based upon the play "Sweet Poison" by Leonard Lee, has Suzanne Pleshette in good form as the widow of a once-prominent scientist, a man apparently killed after an intense experiment with neutrons and radiation went awry. She goes after her late husband's rival--now a physics teacher at the university--whom she believes is responsible for her spouse's death...but is he guilty of anything? And, if not, will she be able to undo the damage she causes? 'Groovy' atmosphere gives the production a "Room 222"-like feel, which might be amusing in a different context. Here, the pedestrian direction and poor-choice score both feel like elements from substandard TV, and the twisty plot suffers as a result. Still, there are a couple of good surprises here, along with some general overacting and a limp finale presented unceremoniously.