A Way to Pass Time

Hannah White has issues. Many issues. She doesn't trust anyone and only sees the world in two colors, Gray and Golden. Those are the colors that she's trapped to and she can't ever escape her past or society.
Lindsey and Peter need to get a project done for their psychology class and decide that Hannah is the perfect test subject. Hannah agrees to go with them because it's just a way to pass the time.
None of them realize that spending more and more time together causes Hannah's past to come further and further to the surface.
So how do you pass the time?