Jane Forrest is the assistant editor of "The Evening Blade," owned and managed by Henry Arnold, who has come to depend upon Jane as his "right-hand man." Though Arnold likes Jane well enough, and finds her companionable as well as efficient, he never guesses that she is hiding a love for him. Jane's sister, Sybil, has caused her many hours of worry through thoughtless affairs with men, and though Sybil has done nothing wrong, Jane would welcome her marriage to some man who would protect her from danger. Jane especially fears Donald Paulding. Sybil breaks her promise not to see Paulding, and goes with him to a café. The same evening Arnold invites Jane to go to supper with him. Jane pleads that she is not dressed for supper, but Arnold tells her that she does not have to "doll up" for him. They are just pals. Jane then knows that her love for Arnold is hopeless. They go to the same café, and meet Sybil and Paulding. Arnold becomes interested in the younger girl and Sybil at length marries Arnold. But the younger girl has long been used to pleasure and finds life with Arnold more than dull. To her the climax is reached when Arnold finds it necessary to break a theater engagement and return to the office. Arnold thinks of Sybil's loneliness and 'phones Jane to go and spend the evening with her. When Jane reaches the house she finds that Sybil has gone out with Paulding. She remains, however, and when Sybil and Paulding return, she surprises them in embrace in the hallway. At this point, Arnold reaches the house, and finds the three in a tense situation. Jane saves Sybil by declaring that Paulding had come with her. While Arnold is away on business Sybil plans with Paulding to elope. Jane learns of their plan and determines to thwart it. At a dance given by Sybil, Jane appears stylishly gowned and carries all the men before her. She ensnares Paulding, in accordance with her plan, and Sybil discovers her admirer proposing to her sister, under the influence of Jane's intimation that she has saved a great deal of money. Sybil bursts into a rage, but is met with a cool rejoinder from Jane. Sybil sees her mistake and rushes to her room. Jane's purpose accomplished, sue immediately 'phones Sybil, but is met with a sniff of disdain, and Sybil turns from the 'phone to rush into the arms of her returning husband. Arnold tells her that he is going to retire from the paper and turn it over Jane, as that is all she thinks about.