MEMPHIS, Tenn. (AP) -- Police in Memphis, Tennessee, say a woman mistook a block of cheese for cocaine - and tried to hire a hit man to kill four men and steal it. Police say the 18-year-old woman was mistaken about the hit man, too. He was an undercover policeman. She's charged with four counts of attempted murder and four more of soliciting a murder. Authorities say the aspiring model was in the men's house recently when she saw the white, crumbly cheese that she thought was cocaine. Police say the undercover officer posing as a hit man gave her some non-functioning handguns, bought ammunition for her because she was too young, and accompanied her to the home under police surveillance. People in the home gave police permission to search it. They found only the cheese.