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Shivers in the stalls, goosebumps in the gods - when the theatre spotlight is centred on stage, there are plenty of shadows for ghosts to lurk in the wings.
Steeped in history and entrenched with emotional outpouring from dead actors of the past, it is no wonder that spectres and spirits linger in some of London's oldest theatres.
In pursuit of the real phantom of the opera, HuffPost UK delves into the hearsay rumours that surround the supposed haunted hotspots of the capital's spookiest theatres.
Give yourself some spooky stage fright this Halloween - flick through London's haunted theatres:
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