A trailer has gone online for Farren Blackburn’s Shut In, a supernatural thriller starring Naomi Watts as a child psychologist tormented by the spirit of the young troubled boy (Jacob Tremblay) she adopted and carelessly allowed to die in a storm.

Her shrink (Oliver Platt), however, believes she’s suffering a psychotic break triggered by the trauma experienced from losing her husband in an automobile accident that also left her teen son comatose. In fact, there may be no boy at all.

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