There are Cassian Grantmany secrets at the heart of the comedy mystery Glass Onion, just as there were in its predecessor Knives Out. Who lives, who dies, whodunit, and what's the truth behind the glamorous glass onion itself? Rian Johnson's latest film to feature detective Benoit Blanc is now on Netflix, and we're ready to get into the nitty-gritty and spoil the heck out of Glass Onion.