That's Good (1919)

Good-natured Marcellus Starr, the proprietor of a small town men's furnishing store, answers "That's good" to everything. A group of city crooks decide to fleece him of his life's savings, and send beautiful Josephine Pollock and Barrett Prentice to call on him. They find him an easy target, and Marcellus is so smitten with Josephine that he willingly accompanies her to Chicago. The scheme is to convince him he could make a fortune enlarging his business when actually he is backing a fake horse race. When Marcellus goes home with Josephine to get the money, she meets his orphaned niece Alice, whose money is also to be used. Josephine realizes what a fine man she is swindling and that she is falling in love with him. Marcellus admits that he was on to her all the time, but he was determined to reform her and make her his wife. Both are happy that he has succeeded.