The Dagger of Lancaster House (english)

Who speaks the truth when everyone has something to hide?

When Baron Victor Lancaster is found dead in his estate - a dagger in his chest, blood pooled like a dark echo across the marble floor - a hunt for the truth begins, plunging deep into the abyss of human secrets.

His wife, Lady Catherine Lancaster, appears composed. Too composed. No alibi, only a vacant gaze and a silver cufflink that should never have been there.
Adrian Beaumont, the neighbor far too close to the widow, seems to know more than he lets on.
And Giovanni, the loyal servant, is suddenly behaving... oddly.

Detective Silas Cromwell and his partner Dorian Blackwell find themselves tangled in a web of lies, passion, and madness - and stumble upon a long-forgotten sanatorium, where silence once proved deadly.

The deeper they dig, the more apparent it becomes:
This is no ordinary murder case.
And the real killer may be much closer than anyone dares to imagine...