The stage adaptation of Mark Haddon's novel "The Curious Incident of the Dog in the Night-Time" on Sunday claimed seven prizes at Britain's prestigious Laurence Olivier Awards.
The mystery drama's haul included best play and best actor for Luke Treadaway and equalled the 2012 record set by musical hit "Matilda".
Treadaway plays 15-year-old Christopher Boone, a maths genius with Asperger syndrome, who is determined to find out who killed his neighbour's dog.
"This is for everyone who worked on the show," he said after accepting his award from "Sex and the City" star Kim Cattrall. "I can't believe it. This is absolutely amazing!" he added.
The stage show premiered at London's National Theatre in August last year before transferring to the Apollo Theatre in the capital's theatre heartland.
Veteran performer Helen Mirren was awarded the best actress prize at the London ceremony for her role as Queen Elizabeth II in "The Audience".
Mirren argued it was the queen who really deserved an award, "for the most consistent and committed performance of the 20th century, and probably the 21st century".
The awards, named after stage icon Laurence Olivier and first held in 1976, are presented annually by the Society of London Theatre.