Self/less (2015)

Enter the gripping story of an immensely wealthy elderly man dying of cancer. Faced with mortality, he makes a daring choice - a radical medical procedure that transplants his consciousness into the body of a robust young man. But as the veneer of health reveals a dark underbelly, the man begins to unravel the mystery behind the body's origins. In a great narrative, he stumbles upon the secrets of a secret organization willing to go to any length, even murder, to protect its enigmatic truths.