Contract Rescission for Fundamental Breach in Reciprocal Agreements

The case concerns a dispute arising from a contractual obligation where a party failed to perform a necessary act, leading to a claim for contract rescission and damages. The lower court had ruled in favor of the non-performing party, finding that the breach was not sufficiently grave to warrant rescission. The supreme court overturned this decision, reasoning that in reciprocal contracts, a failure to execute a fundamental or essential obligation, even if not explicitly stipulated as a condition precedent for rescission, justifies termination when it substantially frustrates the legitimate expectations of the diligent party, thereby affirming the principle that non-performance of a core contractual duty allows for judicial remedy, including rescission.