Wiseguy (1987)

Season 2: Episode 15

Vinnie bails artist Monroe Blue out of jail, then tells him to help Diana work on some songs. Vinnie begins to wonder about Isaac's honesty when he gets a $57,000 bill for bogus record returns. Winston crashes Diana's party to show off Eddie Tempest. Diana succumbs to Winston's charms, then tells Vinnie she has to get out of the country to get away from him. When Vinnie gives Diana money to leave, Winston demands to know where she is, getting furious when Vinnie refuses to tell him. (source http://www.plasticcow.com/wiseguy)