Typhus specialist Dr. David West has fought long and hard for the construction of the new municipal waterworks. Harrison Blake, the town's leading lawyer and banker, conspires to have the waterworks put into private hands and frames David for accepting a bribe. As none of the town's lawyers will take the case, Katherine, David's daughter and a recent law school graduate, accepts her first client in her father. However, the circumstantial evidence is too great and David is convicted. Harrison bribes a worker to sabotage the waterworks, causing a public clamor for their takeover by private interests. Katherine, with the aid of newspaper editor Arnold Bruce, uncovers the conspiracy after the outbreak of a typhus epidemic. David is freed, and Katherine weds Arnold.