The feature is a sequel to the director's short film Just Before Losing Everything (2013). Initially he had planned to make a trilogy of short films but the first one's success led him to merge his plans for the next two into a single film.
The French title is a play on words with "garde" which means both custody and the guard on a sword.
The apartment set was built in Beaune and was later reused for French singer Calogero's music video "Fondamental", directed by Claude Lelouch.