Good lighting/cinematography (SPOILERS)
There's some tasty eye candy here for people who like creative use of light in night photography. The view of Wheeler's Lincoln sedan sitting in darkness but covered with brightly-lit beads of rain, as he and the two cops are approaching just before he buys it in the trunk... and, at the beginning of the next scene, the lighting (or lack of it) on the guy playing the piano... Nice.
BTW, if nobody ever cast Paul Richards (Wheeler) and DeForest Kelley (Star Trek's Dr McCoy) as brothers in some movie or TV show, they should have.