When trust property ends up in the wrong hands, recovery often depends on the state of the recipient's conscience. This chapter opens with the doctrine itself and the three elements a claimant must prove, then takes each in turn: a misapplication of property in breach of trust or fiduciary duty, receipt for the defendant's own benefit rather than ministerially, and knowledge that makes retention unconscionable — tested against the traditional categories and the modern unconscionability standard. It then surveys the remedies, separating the personal claim from proprietary ones and showing what happens when the property is dissipated or the recipient insolvent. Finally, it covers the tracing rules that apply against a wrongdoing recipient and why the bona fide purchaser for value without notice escapes liability altogether.