In The Effect, psychology meets science in a thrilling and tender exploration of love, trust, and mental health. Two student volunteers meet during a clinical drug trial and quickly fall for each other, but is their connection real? Or is it just a side effect of the experimental antidepressant coursing through their veins? Lucy Prebble’s Olivier Award winning play blends biting humor with raw emotion, leaving audiences questioning how much of love is chemistry… and how much is choice.