Dev Patel is Jay, who packs his clothes in Britain, flies to Pakistan, rents a car, switches to another rented car, and shows up at a wedding. He kidnaps the bride-to-be in the middle of the night, leaving with her and changing cars in the process: it's clear he's very good at planning. But the kidnapping isn't quite what it appears to be, and the plan shortly goes off the rails anyway.
There are moments of violence, but this is mostly a study of people. And it gets major points from me for being unpredictable (without being unbelievable). It didn't do well with the critics, but Dev Patel was very good in the lead and I really enjoyed watching it all fall apart.