Staff Nurse Kitty, popular, good-natured and ever willing to help, is giving evidence at a medical tribunal investigating a patient's death. Suddenly she finds herself carried along by events that she hardly comprehends and is condemned before she can even defend herself. Support which she felt that she could count on diminishes in the cause of self-interest, and helpful deeds performed at the time are misinterpreted. Based on a true-life incident, we see the pattern of her life in flashbacks, using imaginative lighting, heightened dialogue and delightful theatrical effects.