This book argues that consequentialism and non-consequentialism are false because they face metaphysical and intuitional problems. The two theories exhaust the theories of the right, so there is no rightness.

This result matters because it requires us to give up widely held beliefs regarding knowledge, moral responsibility, and reasons for action. The author's argument is unique because it focuses on applied-ethical arguments rather than metaethical issues. Specifically, it avoids metaethical discussions of whether morality explains our thoughts and actions, how we know about morality, and whether the denial of morality is self-defeating. The author specifically argues against consequentialism and non-consequentialism in the following ways:

Morality Collapses will be of interest to researchers and graduate students working in normative ethics, metaethics, moral responsibility, and political philosophy.