A teen who suffers from Asperger's, Sacha has a different and guileless view of the world. Having been pulled out of school, he lives with his mother, a humanitarian doctor, whom he accompanies on her missions.
In Manila, after going with his father to look for pygmy seahorses in the clear waters of the Philippines, Sacha is kidnapped by the young gang member Nikki, a knife-wielding girl who slashed her own face to escape prostitution.