Greenwood police are searching for jewel thieves who broke into a store in the middle of the night.

The break-in happened last week at the Alternative Creations jewelry store, and while some of the items can be replaced, much of the missing inventory is either custom-made or customer's family heirlooms.

Owner Michael Dyson said the thieves came in through the roof, like something out of a Hollywood movie.

"They cut through a steel corrugated roof, and it was an opening about that wide and that long," Dyson said.

From there, police believe four men took part in disabling the alarm system.

"Cut the video wires and the alarm system, went back up through the roof, waited a couple of hours then re-entered the business," said Greenwood Police Officer Courtney Burrello.

Dyson said the thieves all but cleaned him out -- $200,000-$300,000 worth of inventory was stolen.

"I'm really mad that … my customers, I got nothing to say to them as far as I don't have any answers," Dyson said.

One of the only things thieves left behind is the DVR that stores surveillance recordings. Police said they can see the four men were wearing masks. They plan to release those images to the public Wednesday.