The film is based on real events when, in the 1970s, the deepest well in the world with a depth of more than 12 thousand meters was drilled in Murmansk…

Lonely widow Joyce rents out a room in her house and becomes dangerously obsessed with one of her guests.

After being bitten by a lethal snake, a young woman experiences changes in her senses and appearance, as she sheds her old self and slowly turns into a deadly weapon.