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THE EFFECT
by Lucy prebble
Old Red Lion 2026

★★★★★ "Expertly directed" London Theatre 1

★★★★.5 "Sam Edmunds lighting and direction bring Prebble’s complex script to life, allowing both the character relationships and the ideas to have their own space and progress naturally. It is well paced, with both moments of intense action fantastically executed, and quieter moments of humour or sensitivity given ample attention" Rated Reviewed

★★★★ "Sam Edmunds breathes new life into the text (last staged in the UK by Jamie Lloyd at the National Theatre) while asserting a distinct directorial voice. With monster-like shadows, creaking boards, and an emphasis on intimacy punctuated by clinical machine beeps, the production is at its strongest when leaning into these inventive choices." Everything Theatre

★★★★ "Sam Edmunds production of Lucy Prebble’s play about a clinical trial uses the intimacy of the space to add to the pressure the characters feel as their every reaction is monitored and amplified...this new revival of Prebble’s play is just the tonic." Reviews Hub

★★★★  "A really interesting and absorbing night in the theatre." London Pub Theatres

CAST
Connie Hall: Millie Smith  
Tristan Frey: Shadrach Agozino 
Dr Lorna James: Sara Odeen-Isbister
Dr Toby Sealey: Andrew Pearson-Wright 

PRODUCTION & CREATIVE TEAM
Director: Sam Edmunds 
Producer: Sara Odeen-Isbister   
Assistant Producer / Stage Manager: Niamh Grace
Movement Director / Intimacy Coordinator: Jess Tucker Boyd  
Set Design: Rob Miles 
Lighting Design: Sam Edmunds  
Sound Design: Gabriel Burns   
Tech Operator: Ryan Kingsbury
Graphic Design: Tom Murch 
Photography: Ali Wright

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