Okay, the mystery is decent, everything else is decent. Except why did Monk have to set fire to his own paintings knowing they were vital pieces of evidence to the counterfeiting case. Also, I get it, the painting of Natalie is terrible, but Randy is right it's a piece of evidence now in a major counterfeiting conspiracy, so don't try to burn Nat. This could have worked, but why have Monk make such a stupid decision like that just to lure the gangster out of the house. Dumb, Dumb, Dumb.