Bipolar 1 disorder appears to have somehow become contagious. Dr Ashley Hammond’s research reveals that it is simply a fast spreading virus which mimics the symptoms of mania, psychosis, and depression. Either way, it sends the world reeling.

Sasha, however, is far from phased. She’s lived with a bipolar 1 disorder diagnosis for over a decade, a diagnosis she received as a teenager. Sasha won’t admit it to anyone (not even her therapist, Dr Hammond), but she relishes the satisfaction of seeing people who used to deny the validity of mental illness – her father for example – now suffering the same symptoms they once disregarded…