This document summarizes a class lecture on Robert Louis Stevenson's novella "The Strange Case of Dr. Jekyll and Mr. Hyde". The lecture discusses how the novella deals with themes of open secrets and male homosocial relationships in Victorian London. Specifically, the lecture suggests the secret that Jekyll is trying to hide has to do with homosexuality, as was often blackmailed at the time. The lecture then provides historical context on scientific understandings of sexuality emerging at this time and growing persecution of homosexuality. It frames the novella as commenting on fears of societal collapse in late Victorian England. Students are then asked to analyze passages expressing fears from the time period.