The Rush(2010)

Lia lives a pretty boring life. She goes to school, has a roommate and reads a lot. She is bored a lot. Until one day when she comes home to discover her roommate is missing. She begins to panic and discovers a cell phone left behind by the kidnapper. The kidnapper uses the cell phone to send Lia on a wild ride around town, performing different tasks that will lead her to her roommate. Lia has to fuck the delivery girl, the local loan shark, watch a pimp do his girl and many other tasks till she is lead to her roommate's location. When she gets to the location she is in for a big surprise