The bodies of a man and a woman were found in one of the rooms at Stoneleigh Park Lodge Hotel, Warks., at 1.17pm on Thursday.
Officers from Warwickshire Police were called to the scene after a hotel worker found the bodies.
Detective Inspector Tim Sharp said: “At this time we believe the incident was contained to the room and we are not looking for anyone else in connection with the deaths.
“We are carrying out enquiries to help establish how they died and a file will be passed to the coroner.”
The hotel is located five miles from Coventry and is located within the area’s exhibition and conference centre.
A spokesperson for Grandstand – Stoneleigh Events, which operates Stoneleigh Park Lodge Hotel, they were helping police with inquiries.