Average Hitch which means better than most everything else from the time. Lovelorn advice columnist (Barry) finds out from nosy advice-seeker that his wife is cheating. Confronting her, he loses his cool and whacks her. The cops think they've got the culprit when a friend (Coleman) turns up after the killing with incriminating evidence on him. But is he really the one cuckolding Barry.
There's some padding here, but it's smoothed over with good acting from Barry, especially. Catch Lou Jacobi as the first incarnation of a Columbo-type detective (IMDB), replete with frumpy raincoat and un-cop like mannerisms. Must say I didn't recognize Dabney Coleman in a straight role; that is, before he perfected his smarmy egotists on shows like Mary Hartman, Mary Hartman and Buffalo Bill. Overall, the episode is more interesting than suspenseful, but will hold you till the end, which may be a stretch but still manages Hitch's trademark irony.