Harold calls on Mabel. While he is there her friend Lily calls. Harold seems to be smitten with her and ignores Mabel. When she leaves he escorts her home. The next day, he again calls on Mabel. He leaves and she follows him. He goes to Lily’s house and Mabel is insanely jealous. She returns home. She, having ordered a bottle of toilet water from the druggist’s, upon her return home the package is waiting for her. She opens the package and notices that there has been a mistake. The druggist, besides the toilet water, has sent a bottle of nitrate of silver. On this bottle is a caution label, warning one that to apply it to one’s skin would turn the skin black. Mabel decides to send it to Lily as toilet water, and changes the contents of the bottles. She sends the bottle up to Lily with a letter that it is great for the complexion. She opens the package and places same on the mantel. Harold calls and they go into the next room. Then Mabel calls to see how her game works, and is surprised by the entrance of a sneak thief. She faints. Harold and Lily bear her scream and rush in. Lily says that the toilet water will revive her and she applies the supposed water to her face. She awakens, and when she sees the bottle in Lily’s hands she realizes that she has been caught in her own trap. She returns home and her colored butler imagines she is one of his own tribe and attempts to make love to her. She makes known who she is and is left to her own remorse.