What happens when capitalism and charity intersect? From Wall Street to life on the street, The Invisible Heart tracks the birth of one of the fastest growing social innovations in modern history: social impact bonds. An unorthodox marriage between government services and private-sector investments, this burgeoning financial model promises to solve society’s most complex problems, from crime to homelessness—but is it delivering? Set in Canada, the U.S. and the U.K, this compelling documentary follows the unlikely people banding together to battle social inequality.