As we saw in Harry Potter and the Philosopher’s Stone, strange things can be hidden inside bank vaults.

Sometimes, they have the ability to change the world.

Dust has released a short film where a man is given a key to a mystery that threatens everything he ever knew.

Box 616 is the latest sci-fi short film from Mitch Glass (who also directed the stellar short Again ), shot for two days inside a bank vault with a budget of about $800 (£632).

It’s about a man named Malcolm Crowe, who’s informed by the local bank that a trust, well, entrusted to him by his grandfather is now available.

The safety deposit box, empty except for a single key and an old matchbook, had instructions to be opened on a specific day, which has now come to pass.

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