The title "The Tell-Tale Heart" suggests that the story will revolve around a specific event or action that has significant consequences and becomes a haunting presence in the life of the narrator. The word "tell-tale" implies that there is a secret or hidden truth that will eventually be revealed. The "heart" can be interpreted both literally and symbolically, representing the conscience, guilt, or emotions of the narrator.
Therefore, the title suggests that the story will deal with a recurring sense of guilt or fear stemming from a particular incident involving the heart or one's inner turmoil. It sets the stage for a psychologically intense narrative with a potential exploration of moral dilemmas, hidden motives, and the internal struggle of the characters.