Around three in the morning, our Labrador, Semi, suddenly rushed into the bedroom. He’s been with us for eight years – a smart, affectionate dog, a true member of the family. He had never caused trouble and always knew how to behave in the house. But that night, he was different.

Semi ran to my wife’s side of the bed, placed his paws on her chest, and began barking softly. His behavior immediately alarmed me. We had always strictly forbidden him from climbing onto the bed, and he had always respected that. But now, he was acting strangely and frighteningly.