Harry Ryan, a wealthy spendthrift, falls in love with Mary Gardner, a beauty shop employee, and marries her. Mary, discouraged because she is unable to cure Ryan of his dissolute ways, leaves him. She returns after a change of heart to find her husband bedridden and despondent. At the moment of reconciliation it is revealed that in reality Mary, unattached, was only dreaming, as the result of reading a book entitled Marriage Morals, by J. C. Black.