...When the plot falls apart. In a ridiculous way. In this it's the ice cream scene and gun in trash can in park moment. With the little one eyed NY dick on the premises. And the murderer, the top man at a Mensa organisation, trying to cover his tracks leaves most of the gun on show in the trash can and Columbo is on his way with his ice cream! Laughable. Nothing in the sky high IQ manual could explain that dumb action.
