Problem-solving courts (PSCs) are a popular and fast-growing alternative to the usual way of handling criminal cases. In place of the adversarial process, they provide court-supervised treatment to certain groups of offenders by addressing the underlying causes of criminal behavior. They take on a variety of forms including drug courts, mental health courts, domestic violence courts, veterans' courts, and homeless courts. PSCs, as relatively new innovations in the criminal justice system, are still evolving in scope and in practice. This article then attempts to synthesize what we know about these specialty dockets. To do so, this article (1) explores the origins and developments of PSCs as well as highlights their defining characteristics; (2) examines the theoretical approaches and empirical findings of contemporary research on problem-solving courts; (3) critically discusses whether this new approach to old problems compromises core judicial principles; and (4) suggests directions for further research to better understand the cautionary promise of problem-solving justice.