A real estate investor says a home he was looking at came with a stairway booby-trapped with a swinging knife.

Knife

Knife

Ekrem Uysaler from Philadelphia says he and his team were checking out homes when one of his colleagues saw a small line on the staircase.

According to WCAU-TV, he stopped his construction manager from heading up the stairs and recorded video as they pulled the staircase line with a spare rod.

They pulled the line and triggered a fast-moving, downward-swinging object above the staircase.

Taped to the end of the line was a large knife pointing to where a person's head would have been walking up the stairs.

Ekrem said this had been a first in all of his years as a real estate investor.

He said: ''It's like 'Home Alone' ... Philly style.''