The Gate explores conscience and the effect of the reawakening of a long buried guilt. The play focuses on David Rivers, a military research scientist who has developed a method for removing traumatic memories from individuals suffering from combat stress. Sam Evans, a mistreated former research subject, returns suffering from confusing flashes of a removed memory. The play follows David’s attempts to rescue himself from a guilt long repressed by restoring Sam’s memory. However, the contents of Sam’s memory reveal David’s true culpability. The play examines the importance of conscience and the potential horror of its absence, and explores how the consequences of a course of action are too unpredictable and far reaching to allow good intent to justify reprehensible means.