After honing his craft writing and creating series for 1950s and 60s TV and having several screenplays produced in the 60s, Cohen became a major low-rent auteur of 70s cheapie genre movies. His ambitious 1972 debut, "Bone" (aka "Dial Rat for Terror" or "Beverly Hills Nightmare") featured Yaphet Kotto as a Black intruder who has a surprising showdown with an affluent white couple (Andrew Duggan, Joyce Van Patten) in their Beverly Hills home. This bizarre black comedy was an attempt to adapt the social satirical concerns of British playwright Joe Orton and Jean-Luc Godard (circa "Weekend" 1967)