Backrooms collected $7.7M on its fourth day (Monday), taking its US domestic total to $89.1M.

The horror breakout is holding remarkably well as it moves out of the opening weekend.
Performance Analysis
Backrooms added $7.7M on Day 4, dropping 58% from Sunday but still delivering very strong early-week numbers. With a $10 million budget, the film has already crossed an outstanding 8.91x ratio in just four days, confirming its status as a major breakout hit.
The internet-born concept continues to benefit from massive online buzz and excellent word-of-mouth. Chiwetel Ejioforβs grounded performance anchors the terrifying descent into the endless liminal spaces. Audiences have responded strongly to the unsettling atmosphere and clever execution.
In summary, Backrooms is showing impressive early week retention.