Plot Summary:His spoilt and pretty daughter, Gem, and a lovely dog, make the old chemist's days far from the serene ones his labors in his laboratory call for. The willful daughter, left to her own devices, selects the most unlikely of her suitors, and with feminine contrariness thrusts him upon father for approval. Aroused, the old chemist endeavors to separate the lovers by locking the girl in her room but finds himself compelled to repeat the forceful ejecting of the persistent lover many times over. Determined by her father's refusal, the daughter and her lover plan to get even with father, who believing that he has made a wonderful discovery, has called in two of the scientists of his city to test the mixture. The daughter and her lover replace the discovery with a harmless mixture to which the dog takes kindly. Entering the laboratory, the scientists are amazed to find the dog drinking the supposed poison. Fearing his bite they lose no time in making their getaway. Ever ready for a chase, the lively dog goes after them with a will. Their frantic efforts to escape result in disaster to all encountered en route. Believing the dog to be mad, a general call is turned in for the police. Gem and her lover rush to the minister's house but the minister refuses to marry the pair and tries to give them the slip. The lovers give chase. Overtaken at the lake's edge, he is compelled to perform the ceremony. Driven by the dog to a high bridge, the scientists decide to take to water rather than risk a bite. Not caring for the jump, the dog leaves the bridge and encounters the police, but discovering his mistress, he makes a glad rush to the consternation of the minister, whose fright precipitates the three into the lake, where the dog joins them. The yells of the scientists and the bridal party bring the police to the rescue and the lake is filled with swimmers, whose struggles show little enjoyment in their dip.