When the hospital caretaker is found dead at the bottom of the sixth floor stairwell, Eugene Starbuck comes to the rescue - and to apply for the dead man's job. The unsuspecting triplet brothers who own the facility are only too happy to have he works for next to nothing, lives in the furnace room where he can be on constant duty, and doesn't mind emptying the rat traps stationed all over the hospital. Was Eugene's sudden appearance completely coincidental, or was it all part of a gruesome and twisted plan? Some nurses and patients die, and circumstances point to Eugene. But catching him may be a trial in itself, as those who confront him mysteriously end up missing.