Watch Castle Season 7 Episode 13 Online Streaming at CouchTuner. Castle 7×13 Online Free
Castle is hired to uncover if a client’s husband is having an affair, but the case takes a shocking turn when Castle witnesses the client’s murder – by her husband. But with no proof that the killing took place, Castle and Beckett must investigate to expose the truth.
Source: ABC
Watch It Here : Castle Season 7 Episode 13 I, Witness