During a visit to friends, Sara begins having visions and is attacked by an unearthly creature in her friend's swimming pool; she soon discovers that anyone who comes into contact with the water is in danger and she is driven to confront the mystical and malevolent creature lurking in the depths.
Reveals decisions by officials and companies before the 2017 Grenfell Tower fire that made it preventable. Survivors, families, and firefighters share their accounts of the tragedy that took 72 lives.