I, Monster (1971) is a Horror, Science Fiction film that follows christopher Lee stars in this Amicus production of “Dr. Jekyll & Mr. Hyde” where the names have been changed to Dr. Marlowe and Mr. Blake. Lee as Dr. Marlowe experiments with intravenous drugs that are suppose to release inner inhibitions. So comes forth Mr. Blake (also Lee) who gets more monstrous with each transformation. Peter Cushing plays his friend and colleague, Dr. Utterson. I, Monster is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 5.5 out of 10 from 55 votes. Fans of horror movies may also want to explore similar titles below.