Being left-handed means choosing what's right. Matt Reynolds thought he was ordinary. But on the day he turns sixteen, he learns he's part of a select group of left handers, called sinisters, chosen to protect the world from evil. When Matt reluctantly agrees to join the fight, he's given a task: find out what one of the most powerful businessmen in Matt's hometown is doing, and stop him. With the help of a few new friends, Matt begins to unravel the man's secrets, but it only leads to more questions. What's going on behind the doors of the man's office? Is he even the bad guy here? And should you ever really trust the devil? Even as Matt struggles to master his new powers, he finds himself in a race against time to discover the truth before someone stops him. When the lines between good and evil begin to blur, will Matt's new powers be enough to save him?