The game La Traque begins at night in a dark and gloomy forest. The player takes control in first-person view of an anonymous male character. The player can run a very short distance before the player gets too out of breath. He is also equipped with a flashlight and can hide in lockers. The forest shelters some buildings which can contain one of the famous hidden pages.

 

The goal of the game is simple, succeed in finding the 5 pages through the whole level before the enemy (represented by a giant mosquito) kills the player. As soon as the first page is taken, the mosquito starts stalking the player. As the player finds pages, the game speeds up and the mosquito is likely to catch it more easily.

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Secret experiments are conducted in an occult research institute. Unfortunately the faithful summoned a mosquito-like creature made of flesh and blood, almost demonic. To keep her alive, they gave her large amounts of blood taken from subjects in captivity. One of them, the protagonist wrote in a diary whose pages will be used for the adventure of the game. The protagonist had found a way to escape however this caused havoc in the institute, because the beast enters in a mad rage and sets off in pursuit leaving behind a trail of death and destruction. The protagonist writes a last page in his diary, before losing his memory due to a violent fall during his run. In his fall, the protagonist loses his journal which is scattered all over the forest.

 

Waking up after his memory loss, the protagonist finds a page in front of him, so he understands that he must find the others in order to understand the origin of his fall and of this creature.