Three men went into the house and threatened the occupant with a knife on Friday evening.
The burglary happened at around 9pm at a house on Dorset Street in Lincoln, off Monks Road, on December 27.
The men did not manage to steal anything, police said.
Detectives are now appealing for information to find the three men, which are described as:
- A black male, aged between 20 to 25. He was around 6 ft tall and average build. He was wearing blue jeans, and a dark jacket with a zipped up hood with patchy stubble on his face and brown eyes.
- A white male, aged between 20-25 years old and was around 6 ft 2, he was average to stocky build wearing dark bottoms and dark jacket, zipped up with a hood up.
- A white male, aged 20-25 years old and was shorter than the other two and around 5 ft 9, chubby build and round in the face. He was wearing grey joggers and a black jacket, zipped up with the hood up.
If you were in the area before or after 9pm on Friday evening and saw anything suspicious, call police on 101 quoting incident 396 of December 27.