An investigation has been launched after a woman was found dead in Maplebeck.
A man was also found injured at the scene and taken to Lincoln Hospital where he remains in a critical condition.
The two people are believed to be a couple in their 70s who live at the house in Low Farm.
Nottinghamshire Police say they are treating the woman's death as suspicious.
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Thousands from around the country went to the Black Country to take part in Tough Guy - a challenge with more than 250 obstacles.
Mainly dry overnight but very cold with temperatures dropping sharply as winds ease down giving a widespread frost.
It will be dry with clear spells across the region overnight.