A group of Philadelphia real estate investors avoided more than a money pit when one of their properties included a booby-trapped staircase.

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Ekrem Usayler was walking through a Southwest Philadelphia home Jan. 2 with his team when they noticed a small trip-wire covered in glass shards atop a stairway, WCAU reported.

They grabbed a pole, pulled the string and started filming.

An aluminum crutch with a knife duct-taped to it fell to where a person’s head would be, the video shows.

"It's like 'Home Alone,' Delco style, Philly style," Usayler told WCAU. "It could've done a lot of damage, but luckily, we saw it before anybody got hurt."