Gantz

Gantz (2010) is a Japanese sci-fi action-horror you can watch online on iFILM. Two former schoolmates die under a subway train and snap awake in a locked Tokyo apartment, alone with a giant black sphere.

The sphere hands out weapons, skin-tight suits and one order: hunt the aliens hiding among ordinary people and kill them. Points stack up per mission, and reaching a hundred buys your freedom — or the chance to drag someone back from the dead. Kazunari Ninomiya and Kanata Hongo play two recruits the game grinds down fast, with Shinsuke Sato in the director's chair.

Adapted from Hiroya Oku's cult manga, it runs bleak, bloody and short on comfort. The hook isn't heroism. It's watching people work out who they really are once dying stops being final. Stream Gantz (2010) online on iFILM.