Hello guys !
At the beginning of chapter 2 you'll encounter a labyrinth.You must reach the finish line under 15 seconds.Easy,simply turn back and follow the red/orange line on the ground.
If the achievement doesn't unlock,try to interact with the strange device on the door and turn back.It'll disappear and you'll unlock the achievement.
You can also follow my video to see the good path.
The achievement pop after the strange device disappear (near the end of my video).So if you have nothing,quit to the main menu and restart.
Enjoy !