A Summer in the Cage is a feature-length documentary about Sam Murchison's battle with manic-depressive illness--a brain disorder that causes unusual shifts in a person's mood, energy, and ability to function marked by manic highs and depressive lows, also known as bipolar disorder. The film begins before Sam's diagnosis with bipolar disorder and follows him through his seven-year battle to repair the damage of delusional manic episodes, overcome paralyzing depressions, and escape the legacy of a bipolar father who committed suicide when Sam was eight. During the seven years of documenting this story, a tenuous triangle forms between Sam, the filmmaker, Ben Selkow, and the filmmaking process itself. Sam and Ben's relationship is brought to a dramatic precipice by Sam's cycle of manic episodes and a light is eventually cast on the ethical responsibilities of the filmmaker to his subject. While Sam's life deteriorates on screen, the question is asked: "Are the wider benefits of showing an audience someone's plight worthwhile if the very process of making the documentary may be damaging the subject?"