The Fearless Triplets.

In this Stephen King-like movie about good versus evil, Lien, Sien and Fien Kriegel, unseparable eleven-year-old triplets, set fire to their school. The sisters get arrested and are put away in an institution. Not a regular reformatory but... a paradise. So much better than home. Until the sisters discover that the doctor who runs the places takes away organs and sells them to the highest bidder. Until they find out they're next on his list...