Burglars broke into a house in Barby, getting in through a bedroom window.
The incident at the home in Kilsby Road happened between 1.45pm and 2.20pm on Tuesday September 29.
At the time of the incident, a man wearing a light coloured camouflage jacket and matching trousers was seen acting suspiciously in the area. He was about 5ft 11in and of medium build.
Witnesses, or anyone who knows anything about this incident, can call Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111 or use the anonymous online form at www.crimestoppers-uk.org.