Pinnick (P) was injured in an automobile accident. He claimed that the accident was caused by Cleary (D), who was negligent. P sued D in common law, seeking damages above and beyond what was allowed by the Massachusetts no-fault statute. D used the no-fault statute as an affirmative defense. P then brought a bill in equity to the Massachusetts Supreme Judicial Court, claiming that the statute unconstitutionally deprived him of 'his right to full recovery in tort.'