Charming young Armi is brutally murdered, and the police—believing the crime was committed for sexual reasons—arrest her fiancé Kimmo. Every piece of evidence points to him. No one believes in his innocence—except Maria Callio, who left the police but kept her intuition and detective talent. She suspects: Armi’s murder is connected to another tragedy that shook Kimmo’s respectable family a year ago. Then Sanna, his eccentric sister, died—and everyone called it suicide. But now Maria, conducting her own investigation, comes to a conclusion: there was no suicide—someone killed Sanna, and Armi knew something about Sanna that nobody else did. Who is the killer? And how can you find him?..