While diving in a remote French lake, a couple of YouTubers who specialise in underwater exploration videos discover a house submerged in the deep waters. What was initially a unique finding soon turns into a nightmare when they discover that the house was the scene of atrocious crimes. Trapped, with their oxygen reserves falling dangerously, they realise the worst is yet to come: they are not alone in the house.
Wael, a former street child, makes a living from small scams with his adoptive mother and partner-in-crime Monique. When this unconventional duo swindles the wrong guy, Victor, an old acquaintance of Monique now in charge of a support organization for troubled teens, they have no choice but to become his interim secretary and educator in order to redeem themselves.
Germany, 1944. Leyna, the 15-year old daughter of a white German mother and a black African father, meets Lutz, a compassionate member of the Hitler Youth whose father is a prominent Nazi soldier, and they form an unlikely connection in this quickly changing world.
