The wolf stole the grandma's wig and her outfit, put it on, and got in the bed.
Grandma why is your skin gray and hairy and why is your voice so deep?
Oh, I'm just a little sick deary, now please, hand me those treats!
Little Red Riding Hood knew something wasn't right. She washed her face and cleared her head when she realized that she saw shedding of gray fur on the floor and on her grandmother's hairbrush. She decided to call the cops.
The cops came and inspected the fur and concluded that it belonged to the wolf dressed as the grandma because two of the strands had a follicle attached to them.
The cops arrested the wolf because the DNA of the hair belonged to him. The grandma was freed and got her clothes and wig back.
The grandma and little red riding hood were happily and safely reunited.