Capt. Gerd Wiesler (Ulrich Muhe) is the German Democratic Republic's ultimate company man. So good at conducting interrogations and spotting liars he teaches new State Security ("Stasi") recruits how to do both and dedicates his life to watching and exposing "comrades" who aren't quite as loyal as they should be. But when he starts conducting surveillance on dashing playwright Georg Dreyman (Sebastian Koch) and his actress girlfriend Christa-Marie Sieland (Martina Gedeck) Wiesler finds himself getting caught up in their real-life drama--particularly after he discovers the true reason Dreyman has come under suspicion. As the stakes rise Wiesler's dedication to the Socialist Unity Party battles his growing sense of what honor truly is. The Lives of Others is full of strong performances with Muhe's at the top of the list. Resembling a German Kevin Spacey he conveys most of Wiesler's changing outlook through his large expressive eyes. As Wiesler's exposure to the color and passion of Georg and Christa-Marie's life underlines the stark emptiness of his own Muhe signals through slight changes in his character's rigid discipline much more is going on beneath the surface. Koch and Gedeck are also excellent. Georg and Christa-Marie's need for self-expression is constantly stifled by the pressure to be good party members and both actors--particularly Gedeck--make it clear what the personal cost of that conflict can be. In the supporting cast Ulrich Tukur does a nice job as Wiesler's secret police colleague/supervisor Lt. Col. Anton Grubitz turning what could have been a one-note performance into a role with unexpected nuances. Director Florian Henckel von Donnersmarck--who grew up in West Germany but visited the East as a child with his parents--has said that he spent four years researching The Lives of Others and it shows. The stark impersonal nature of much of the socialists' daily lives has the stamp of authenticity as does the film's mood of constant fear and suspicion. By contrasting scenes set in Georg and Christa-Marie's eclectic lived-in apartment--a haven from the world of informants and efficiency--with shots of a solitary Wiesler eavesdropping via headphone von Donnersmarck shows how even a tenuous connection to the world of passion and art can transform a life. In the end it is the characters' most human instincts--be they good or bad--that determine their fate not the party's rules and regulations.