Unjust enrichment occurs when one party benefits at the expense of another in a way that is legally or morally wrong. This situation often arises when someone receives a benefit without providing compensation, leading to an imbalance. For example, if a person mistakenly pays for a service they did not receive, the service provider may be unjustly enriched. To address unjust enrichment, the law allows the affected party to seek restitution. This means the party who received the benefit may be required to return it or compensate the other party. The goal is to restore fairness and prevent one party from profiting unfairly from another's loss.