Billie Piper and Jonjo O'Neill as Tristan and Connie in "The Effect" by Lucy Prebble at the National Theatre. Tristan and Connie volunteer for a drug trial evaluating a new anti-depressant. Photographer: Ellie Kurtz/National Theatre via Bloomberg
Billie Piper and Jonjo O'Neill as Tristan and Connie in "The Effect" by Lucy Prebble at the National Theatre. Tristan and Connie volunteer for a drug trial evaluating a new anti-depressant. Photographer: Ellie Kurtz/National Theatre via Bloomberg
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