This movie has a ton of well known actors, Julia Roberts, Kevin Bacon, William Baldwin, Oliver Platt, and the main character: Keifer Sutherland. It’s a sci-fi movie from 1990 that has been recently remade in 2017. This is the 1990 version that I watched and am talking about.
As med students, the group of five friends have questions about death and what happens afterwards. Julia Roberts for example, likes interviewing patients who have had near death experiences. And then Keifer Sutherland decides to experiment. That experiment is causing himself to flatline, or die for a short period of time and then have his friends bring him back.
Eventually four out of the five friends flatline, each with unintended consequences. Their sins come back to haunt them, but only after nearly all of them have flatlined do they actually confront this piece of information.
Its an amazing cast of popular 90s actors and I love that, its very rare to have more than one star actor in a movie (unless you count the collaborative Marvel movies).