The vast emptiness of luxury hotels is part of the mystery and spectacle of Edward Berger’s intriguing if static and overwrought psychological drama-thriller; it is about a desperate chancer and gambling addict, faced with the metaphysical crisis of renewing or annulling his existence by staking everything on a single bet. Screenwriter Rowan Joffe adapts the 2014 novel by Lawrence Osborne, whose title is ironic. He would not have these problems if he really was a small player. He is a big player and a big loser, although his smallness comes…