Jackson Gillis wrote some of the best scripts for the 70's Columbo series and he's on hand here to modify the old Columbo formula in this 1990 production.
The admission by producers with these "new" Columbo adventures is that the detective's well-known and well-received characterisation is no longer singled-handedly able to support an ordinary, Murry mystery script. This TV movie is a case in point - we are never quite sure who the murderer is until the end, something that completely goes against Columbo tradition...
It's too long for what it finally reveals and some of the acting is soap-opera style at best, but the character of Columbo remains charming to this day (something that Peter Falk deserves a lot of credit for). Watchable, but there are better "new" Columbo adventures around and it it still hard to bear largely second-rate stars acting as the murderers when some of the top actors/actresses graced the Columbo series in the 70's.