We'll cut to the chase. The wall is nanotechnology created by a tech company as a defence system against "any form of attack ...

What was the real cause of that black brick wall?

Brick, Netflix’s new claustrophobic fever dream, locks its couple behind a black metallic wall, but that surface trap only mirrors the deeper maze within.

Know everything about the ending of Netflix's German psychological thriller, Brick. Find out if Tim and Olivia were able to escape the wall or not in the film.