One of the hundred books a year I read:

Five teens meet at an orphanage, Savior House. They bond to protect each other from the violence rampant in the home. Every few months, a teen girl disappears, but no one seems to care. When a girl close to them vanishes, the five commit a horrible act to stop the madness.

Twenty-five years later, they’ve lost touch and pursued their own lives. A judge. A tech billionaire. A TV producer. An aging rock-and-roller. A mother. When an assassin kills one of them, and attempts to murder the other four, they can only assume the motive is connected to their time at Savior House.

As much as they wanted to forget their time their, they’re forced to return to solve the mystery. If they live long enough.