Cryptozoologist and avid traveler Philip Martynov with a team of like-minded people goes to Peru in search of the De Lua monkey - a mythical creature that, according to the Peruvians, “has intelligence and walks like a man.” This monkey is considered a harmless and timid creature, so the expedition promises to be safe. Not an expedition, but a picnic. In a cheerful mood, cryptozoologists go to the foggy forests in the vicinity of the ancient city of Cusco.

After a few days of travel, they unexpectedly meet an unknown creature in the jungle - huge, smelly, with monstrous fangs and fiery fur. The monster looks dangerous and very angry - it clearly doesn’t look like a harmless monkey...