 Gray and Sam are brother and sister and best friends, flatmates in New York City, where she creates ad campaigns and he s a surgery intern. Their social life is too insular, so they head to a dog park so Sam can, maybe, meet a woman. He does - Charlie - a zoologist new in the city; he likes her immediately, and the feeling seems mutual. As the three of them spend time together, what if Gray s feelings for Charlie aren t just sisterly? Not only might this explain her solitary life, but it could lead to real dilemmas - with Charlie (who s sweet, but a bit opaque) and with Sam. No advice comes from Gray s therapist, but a co-worker and a cab driver give theirs. Can Gray sort things out?