A distraction burglary has taken place at a house in Tallington, near Market Deeping.
Police are looking for two people, one of whom knocked on the door of a house in Heron Close and told the occupier that they had hit their fence.
Meanwhile, another person went inside the house and searched the bedroom, although it appears nothing was stolen.
It happened at about 5pm on Wednesday and anyone with information should call 101, quoting incident number 127 of July 30.
You can also call Crimestoppers, anonymously, on 0800 555 111.