Al Lewis and Nipsey Russell were in the original Car 54, Where Are You? (1961) TV series, playing Officer Leo Schnauser and Officer Dave Anderson, respectively. Here they play the same characters years older, as if this film were a sequel to the original series, rather than the updated and (otherwise) recast remake that it is.
According to a recent interview with John C. McGinley (AV Club's Random Roles- April 2013), the film was original shot as a musical with full musical numbers. After editing, only two musical numbers remained. McGinley was unsure of why specifically the numbers were cut or by whom, but McGinley mused that he found the film in its present form an incoherent mess.