At the centre of this play of ideas about animal consciousness is a three-way relationship between two humans and one octopus.
Professor George Grey (Jemma Redgrave) is a celebrated behavioural biologist, in mourning for her recently dead husband. All she has for company is an octopus named Frances that she has written academic papers about. Harry (Ewan Miller) is an anthropologist out to prove his rather far-fetched thesis that octopuses can engage in acts of worship and abide by belief systems, just like humans. So he inserts himself into George’s life, as well as Frances’s.