Please help

The movie was set around 4 or 6 strangers that won a trip of a lifetime.

They board a small aircraft, but on the plane they have to play a deadly game with each other or they're killed. The game consists of admitting their previous mistakes. If they don't answer questions correctly, a family member of theirs is streamed live to them and murdered.

It was actually pretty good, can't remember for the life of me what it was called.

Anyone know?