Irish director Donagh Coleman and Wildfire Films explore the extraordinary phenomenon of Tukdam, whereby some Tibetan Buddhist practitioners are able to forestall physical decay at the point of clinical death for days, even weeks, by entering a deep meditative state. Supported by His Holiness the Dalai Lama, who appears in this film, a group of leading scientists conduct groundbreaking research into the phenomenon, which challenges Western medical understanding of the line between life and death.