Acme Rocket Fuel

Every six years, an ancient order of jiu-jitsu fighters joins forces to battle a vicious race of alien invaders. But when a celebrated war hero goes down in defeat, the fate of the planet and mankind hangs in the balance.

When Isabelle mysteriously drowns on a beautiful tourist beach, her sister Katherine, a New York lawyer has to overcome her own demons to catch a disturbed serial killer only she believes exists.