Complex sentence: Dr. Hoenneger conducts an evening lecture with Lawrence as a case study and ensures Lawrence that he is only a werewolf in his imagination, seeking to prove it by putting him on display during the full moon.
Split into simpler sentences: Dr. Hoenneger conducts an evening lecture with Lawrence as a case study. He tells Lawrence that he is only a werewolf in his imagination, and seeks to prove it by putting him on display during the full moon.