This document contains summaries of different TV drama genres including teen drama, period/costume drama, police/crime drama, and medical/hospital drama. For the teen drama Younger's, it provides a brief description of the plot following a group of London teenagers pursuing careers in urban music. For the period drama Downton Abbey, it highlights Hugh Bonneville's performance and the show's high production value. The police drama Luther is summarized as starring Idris Elba as a London detective who dedicates his life to his work. Finally, the medical drama Casualty is outlined as the longest-running emergency medical drama focusing on the staff of Holby City Hospital's accident and emergency department.