Auschwitz, 1942: Her entire body trembles as she stands in the infirmary and realises the horrifying truth. She’s a nurse, but instead of saving her fellow inmates, she’s about to be ordered to kill them… Surrounded by thick fog from the nearby forest, Orli stumbles from the cattle truck onto the frostbitten grounds of Auschwitz. Betrayed by her own husband for being a German resistance fighter, she has no one left in the world, and this is now her home.

Paris, 1943. German soldiers drag me out onto the cobbled street and push me toward the waiting truck. I force myself to face forward as tears stream down my cheeks. If I look back, they’ll know. I can’t let them find my baby girl....

Germany, 1945. As the ground shakes and the air raid sirens wail, Katja holds her tiny baby to her chest. She pictures Karl’s handsome face and kind blue eyes, her breath catching at the thought of him heading back to the front. She must never tell anyone about the letters she delivered for him or the other secret she is hiding....

It’s the phone call every mother dreads. I’m climbing into the car after a trip to the grocery store. As the engine starts, my phone rings. It’s my stepdaughter, Shelby, who is babysitting my three-year-old Millie. "I only went upstairs for a second," she says through her sobs. "She’s gone." When the police turn up, Shelby’s story starts to unravel. What is she hiding? Then I get a message saying, "Your husband is not who you think he is." Suddenly, my family feel like strangers. Everyone has a secret - even me.

One hot, humid day in July 1944, the Gestapo abducted 15-year-old Henry and his mother, forcing them onto cramped cattle cars in the Łódź Polish Ghetto. Like so many Jews before them, they had been selected to disappear–they were being sent to Auschwitz.