Richard has no idea that the older woman in his new relationship is none other than Professor Macklin's ex wife, Katrina. Owen and Natalie volunteer at a psychiatric center and Natalie begins to think differently of him. Meanwhile, all the students are learning about sexual manipulation, both in and out of the seminar.

• Tom Fontana
• Julie Martin

• Milo Ventimiglia
• Penn Badgley
• Victoria Cartagena