The movie"Sex Therapy" follows a psychologist who comes up with a unique approach to help three couples improve their relationships through a group session. She challenges them to analyze each other without her presence, using envelopes with specific instructions to guide them. This unconventional method encourages open communication and allows everyone to express their thoughts and feelings freely. As the couples delve into the issues at hand, they are forced to confront their own insecurities and confrontations, leading to a deeper understanding of themselves and their partners. Through this process of sexual psychological counseling therapy, they discover new ways to connect and strengthen their bond, ultimately finding healing and growth in their relationships.