Secret City: The Human Threat is a hidden object game developed by American indie game developer Gray Matter. The game is set in London and tells the story of a detective named Kate Gray. When the city’s bank of art is stolen, the city’s best detective is called in to investigate.

It’s not long before the disappearances start and it seems like the culprit is one of the most dangerous criminals. But it turns out to be a false alarm and the thief is merely a thief.

But the disappearances continue and the city begins to panic. A mysterious phone call from an unknown sender keeps the police busy and forces them to rethink the case.

The truth is hidden in the Secret City Bank of Artifacts and it’s up to Gray to find it.