Death Drug

Death Drug is a 1978 American exploitation film that deals with the harsh and deadly affects of PCP, or angel dust. The film starred Philip Michael Thomas as a plumber turned musical artist who got hooked on angel dust, leading to a drastic change in personality and, soon, his demise.

Then entering the scene is Jesse Thomas Philip Michael Thomas, a plumber with a desire to be a successful singer and musician. Jesse was living a decent life with his fiance Vernee WatsonJohnson until one day, he was accepted into a music conservatory and, later, a recording contract with Crown Records.To celebrate, Jesse and his fiance go to a night club performing at the club was The Gap Band, who perform several numbers and even let Jesse play keyboard. At one point, Jesse went to the restroom where he was accosted by a drug dealer Frankie Crocker, who gave Jesse a free sample of whack, a cigarette laced with angel dust. At the table, Jesse took a few puffs of the cigarette, leading to a hallucination of a moving painting on an otherwiseblank wall. ........

Source: Wikipedia