A doctor finds his old diary while answering to the authorities about self-prescribing morphine. He has a series of comic exchanges with his young and inexperienced self, mocking him for his youthful looks and guiding him through his early difficulties on the job.

The inexperienced younger doctor is forced to carry out the operation of his career. His older self does little to ease his nerves.

Stomach pain pushes despairing doctor Daniel Radcliffe to desperate lengths. His older self, Jon Hamm, suffers the unsavoury effects of his addiction.

Doomed doctor Daniel Radcliffe spirals into dark hallucinations as his older self tries to stop him destroying his life.