So I was on channel 4 last night and got the last 10 minutes of this movie. There were 7 friends and 1 girl was in a love triangle with 2 of the guys in the group. One of the girls lost here job and locked herself into this all pink/red apt. with a clown head in the background. Then one of the guys were a sax. Player and took the other girls virginit, then moved away. I don't know what it was called but it was an older movie from like the 80's or 90's..

St. Elmo's Fire (http://en.wikipedia.org/wiki/St._Elmo%27s_Fire_%28film%29)