So yeah, I listed three other movies as "similar", since they all sport the idea of shooting a movie in almost just one location. All action/thrillers, with someone doing something almost against their will...
95% of this one is shot in the trunk of a car, and it's a good movie. How is that possible? I guess good story writing, good acting, nice score all helps.
The movie has some twists and turns that works really well.
Very basic, but very good.