She is my obsession (Dangerous Lessons) is a 2015 thriller film directed by Jacobo Rispa and Damián Romay. Stephanie is an attractive biology teacher, she is married to a businessman, Michael, and has a teenage daughter named Nicole. Relationships with her husband begin to shrink because of the poor attention she devotes to her, as she finds herself always engaged in work. Also with her daughter the relationships are not optimal, she is the classic teenager who spends many hours on her mobile phone and has little communication with her mother.One day, at school, while Stephanie teaches, she receives in class a new student named James, who will immediately develop with her sistership and sistership who takes her sisterhood as a companionship, but Stephanie will soon retire to her motherhood. The final scene clearly alludes to James targeting another woman, a nurse who took care of him.