Roy Milano, a self-described movie detective who is devoted to finding, hoarding, and reciting arcane information about films, once again stumbles into a murder case - this one centering on a copy of Jerry Lewis's infamous uncompleted film, The Day the Clown Cried, shot in Sweden in 1972. Though rough cuts were apparently screened for the filmmaker's colleagues and Hollywood insiders, the movie was quickly suppressed and never exhibited to the general public or to any critic or film historian. And now certain cinema buffs are ready to kill to possess that elusive footage. It's up to Roy to save the day, and the film, before everything unspools.
I don't think this one stands alone (I had read the other already) as there are references to past events. I listened more for the narration, than the plot - which was all over the place - requiring active suspension of belief in several places.