Struggling with financial troubles and a streak of bad luck, Charles Blakey makes a desperate decision to rent out his basement to a quiet and mysterious stranger. At first, the arrangement seems like a simple solution to his problems, offering him a much-needed source of income. But as unsettling events begin to unfold within his home, Charles starts to suspect that his new tenant may not be who he appears to be. What he believed was an ordinary agreement soon spirals into a chilling confrontation with a presence far more sinister than he ever imagined.