Brain-Child

An experimental brain, held in an underground facility, one day electrocutes a guard close by. But the brain wakes the fallen body up as the new owner. But that's not all; with but a gesture of the hand, it switches bodies with another person, even taking the place of the target's mind. Soon enough, opposing factions chase after it. One wants to contain it and experiment on it further to control it. The other wants to destroy it. In between all this, the brain wants freedom, but it'll be pretty tough even when many are on it's tail no matter which body it owns.