I've always been fascinated by the human mind and on two occasions I tried writing a psychological thriller that had to do with sociopaths, I failed both times. I have a new plot that are both influenced by my previous two stories. Here's the concept. Treston the protagonist goes through a loss, his best friend died. Through his remaining year at high-school he fell into depression. After senior year was over as soon as he could he enrolled in college. Treston shares room with the second main character, Sebastian. Sebastian is a very analytic person, he has no boundaries or shows no sign of empathy towards Treston. I'm trying to create a dynamic within this story. One character having no control over his life and the other having complete control, the problem is I don't know where this goes. I don't a definitive plot and to be quite honest I'm indecisive about this whole concept. My main character has no goals and the same goes for my other main character. I know characters don't need goals, they just need a purpose but if I write this I don't know how to progress the story.