Missing by Karin Alvtegen

Born into a life of privilege, Sybilla has spent many years opting instead to live on the streets of Stockholm, cadging a bed, a bath, a meal, where she can. Her favorite technique--one she permits herself only as a special treat--plays out at the Grand Hotel, where with luck she can usually charm a lonely visiting businessman into buying her dinner and a room for the night.

But then she picks the wrong businessman. When his dead body is found the next morning, Sybilla becomes the prime suspect. For years, her anonymity has sheltered her; she has found a kind of home in the invisibility of homeless life. But with her anonymity shattered, Sybilla is forced into the one course of action that might allow her to go home again.