A torrential downpour forces Philip and Margaret Waverton and their friend Roger Penderel to seek shelter in an ancient, crumbling mansion inhabited by the strange and sinister Femm family.
On the house\'s top floor are two locked doors: behind one of them is the myste.
But as the night progresses and tensions rise, dangerous and unexpected secrets emerge.
Determined to make the best of the circumstances, the Benighted travellers drink and talk to pass the time while the storm rages outside.
A torrential downpour forces Philip and Margaret Waverton and their friend Roger Penderel to seek shelter in an ancient, crumbling mansion inhabited by the strange and sinister Femm family