Candide is a young man who is living a sheltered life in an isolated castle with his aunt, Lady Cunégonde. However, when he is forced to leave his home, he experiences a series of unfortunate events that teach him the harsh realities of life. Through these experiences, Candide learns that optimism is not always warranted and that life is often filled with suffering. Despite the trials he faces, Candide remains hopeful and eventually finds happiness with his true love, Cunégonde.