Two vandals hurled gallons of oil at a house in East Harling in a late night attack.
The house and car in White Hart Street were splattered with the black oil causing damage running into thousands.
Police say two men were involved in the attack, which happened in the early hours of Tuesday 31 October 2017 around 1am.
Officers are keen to speak to anyone with information or witnessed the incident, particularly anyone who saw a white pick-up truck vehicle in the area around the time of the incident.
They’re asked to contact PCSO Dion Phillips at Attleborough Police Station on 101 or alternatively contact Crimestoppers anonymously on 0800 555 111 or via their anonymous online form at www.crimestoppers-uk.org.