A Boston area man arrived home last week to find that an intruder had broken into his home and cleaned it. Nate Roman, 44, of Marlborough, Massachusetts, called the local police department after he returned home with his 5-year-old son to find his door unlocked.

Roman initially thought he had been robbed, but upon further inspection, he discovered that nothing was missing and that most of his home were far cleaner than how the family had left it earlier in the day. While speaking to CNN, Roman said the incident took place on May 15.

"[My son said], 'Dad! The door is unlocked.' Which I have done once every blue moon and didn't think anything of it. But when we walked in immediately there was a vibe that something was wrong in the house," Roman said, adding that he realized someone may have been in the house because a door he normally kept open was firmly shut.

When Roman went upstairs to check the rest of the house, he discovered his son's room, which had been a mess in the morning, was cleaned up and neat.

"It was terrifying just to know someone was in your house," he told local media WCVB. “They scrubbed everything down, did the shower, did the toilet. Nothing has been taken, other than just being rearranged, cleaned, put away and put straight.”

"Rugs were vacuumed, everything was neat and put away," Roman said, adding the kitchen was the only area in the house not cleaned. "No crime happened, nothing was missing or damaged, so the police have very little to go on."

The Marlborough Police Department launched an investigation and said they were taking the intrusion very seriously but were yet to find a suspect.

“This is still a B and E [breaking and entering], it’s just for misdemeanor because it did appear there was any intent to steal to take anything from the property,” Sgt. Dan Campbell told local news channel WCVB.

Roman also said he discovered roses made from toilet paper in the bathroom, which made him realize this was probably the work of a professional. Roman speculated that a cleaning service may have come to the wrong address. However, he decided to change all the locks to his home following the incident, CNN reported.

Police Car
In this photo, police cars sit on Main Street in Dallas, Texas, on July 7, 2016. Laura Buckman/AFP/Getty Images

This is not the first time when an intruder did something unusual instead of stealing from a house.

In March, two roommates in Phoenix, Arizona, were in their apartment one evening when one smelled something burning. When they went to check their kitchen they found a man cooking tortillas. Jerry Christopher Drane, 31, was later arrested on the front balcony of the apartment and charged with felony criminal trespassing.