Angie and Helen are in love. They live and work together designing women's evening wear in Vancouver. When Helen decides she wants to have a baby, the pair set out to find a suitable sperm donor.
The Bed opens with Jamie, a young man, looking round an old, deserted country house. Through flashback we see Jamie as a boy, scared out of his wits when his older sister and her boyfriend, left alone in the house to babysit Jamie for the evening, play cruel tricks on him.
A young woman travels with her partner to England on the unexpected death of her brother. Staying with her sister-in-law, she finds her companion soon drawn into a satanic cult based in the house whose rites seem to centre somewhat on large-scale sexual congress.