This is a deliberately paced slasher film set at a house in New Mexico during a storm. A young woman, Makenzie Vega, has her car hit by a strange man, Bill Sage, and they trade details. That was an error. “Fender Bender,” made in 2016, feels like a throwback to classic slashers from the seventies – films such as “Home for the Holidays,” “Savage Weekend,” and the original “Halloween” (the first two were created …