Rosen was born in Cornwall. She studied psychology at Oxford before moving back to the West Country.
She now lives on the south coast of Devon with two imaginary cats, fantasising about getting a real one.
Readers have downloaded over 200,000 copies of Rosen's books. Several titles have broken into the Amazon charts, including a number 1 humorous fiction bestseller.
Looking after a dog is one thing, but looking after a dead dog is a different matter altogether, especially for a stranger in London.
When a waitress from a Cornish fish restaurant lands an audition for a West End show, she can't believe her luck. The only catch is that she has to look after a pet dog in exchange for board.
She soon finds herself trying to juggle auditions, the demise of a long-term relationship and a blossoming fling, all whist hiding a sinister secret concealed within her suitcase.
"It is that famous sarcastic, British wit that I could eat all day. Simply another winner...