Nicolas Wolf, an Austrian who's just inherited his grandmother's Parisian flat, is shaken with fear as an unexpected nightly visitor refuses to leave. But no-one but Nicolas seems to be able... Read allNicolas Wolf, an Austrian who's just inherited his grandmother's Parisian flat, is shaken with fear as an unexpected nightly visitor refuses to leave. But no-one but Nicolas seems to be able to see the menacing stranger.Nicolas Wolf, an Austrian who's just inherited his grandmother's Parisian flat, is shaken with fear as an unexpected nightly visitor refuses to leave. But no-one but Nicolas seems to be able to see the menacing stranger.