Casey v. Adam was a United States Supreme Court case that addressed the issue of whether a contract between two parties was valid. The case involved a contract between the plaintiff, Casey, and the defendant, Adam, in which Adam agreed to pay Casey a certain sum of money in exchange for Casey's services. The Supreme Court held that the contract was valid and enforceable. The Court reasoned that the contract was supported by consideration, meaning that both parties had given something of value in exchange for the other's promise. The Court also found that the contract was not against public policy, as it did not involve any illegal activity. The Court also held that the contract was not voidable due to any lack of capacity on the part of either party. The Court noted that both parties were of sound mind and had the capacity to enter into a contract. Finally, the Court held that the contract was not voidable due to any fraud or misrepresentation on the part of either party. The Court found that there was no evidence that either party had made any false statements or had acted in bad faith. In conclusion, the Supreme Court held that the contract between Casey and Adam was valid and enforceable.

In the case of Casey v. Adam, the Supreme Court was tasked with determining whether a contract for land between two parties had been breached by one party and if so, what damages were owed to the other. The majority opinion held that since there was no evidence of fraud or bad faith on either side, both parties should be bound to their agreement as written in the contract. However, Justice Field dissented from this decision arguing that while it is true that contracts should generally be enforced according to their terms when entered into without any fraudulent intent or bad faith conduct on either side, he believed an exception should have been made in this particular case due to certain circumstances surrounding its formation which would make it inequitable for one party (Adam) to hold another (Casey) strictly liable under its terms. He argued that because Adam had failed to disclose material facts about his title and ownership rights over the property at issue before entering into a binding agreement with Casey regarding said property's sale price and delivery date - despite being aware of such facts - then he ought not benefit from his own wrong-doing by having full enforcement of those contractual obligations against Casey who did not know these details beforehand.