American Werewolf in London

Two American young men, David and Jack, were attacked by a pack of wolves while camping in the wilderness during a trip to London, England. David was severely injured and hospitalized. During his convalescence, he frequently dreamed of his deceased friend Jack, who kept warning him. Until the night of the full moon, David's body underwent a tremendous change, transforming into a hairy werewolf, and he began killing people on the streets.