This week's episode is about the Hulu Series the Lesson is Murder.  The killer this week is Ivie De Molina and the theme of this show is to figure out why a killer kills!  A team of investigators re investigate Ivie, a housewife turned dominatrix turned cult leader killer.  She influenced a group of young men to kill two of her clients.
BUT why did she have them do this?  The motive may not seem so clear.