Hawaii Five-0: Season 8, Episode 6

8 - 6: Mohala I Ka Wai Ka Maka O Ka Pua (Unfolded By the Water Are the Faces of the Flowers)

The murder of two tourists leads Five-0 to a man suffering from multiple personality disorder, where one of them becomes violent and another is a child. McGarrett is accompanied on the case by a stress management consultant, whom Danny and the others have hired to help him manage his health.