Investigators say the man has been seen walking through Malvern and Willistown Township, checking door handles and tapping on windows in the overnight hours of July 17th into the 18th.
Not only is he allegedly trying to get into houses in the middle of the night, but police say he has escalated into more disturbing behavior.
"Obviously trying to enter residences is a concern, but there was some lewd conduct that really concerns us," said Det. Sgt. Stephen Jones of the Willistown Township Police Department.
Officials also say they are concerned because it appears that he isn't deterred by cameras or motion lights.
"We're talking 2 in the morning, 3 in the morning," Jones said. "It's very isolated out there."
His actions are both brazen and disturbing. Police say at some point in one of the videos he is seen exposing himself.
The man has tattoos on both arms, including a full sleeve on his right arm. His clothes still had security tags.
Investigators are trying to use facial recognition to identify him. They are also asking for the public's help.
Police are asking neighbors to check home security footage from July 17 and 18, and call in if anyone recognizes the man.