Transformation(2014)

Transformation is a medical thriller series based on Keigo Higashino's bestselling novel, which has sold over 1.25 million copies worldwide. The story follows a protagonist who discovers that someone else's brain is somehow living inside their body, blurring the line between identity and consciousness. As the mystery deepens, the protagonist must navigate the terrifying implications of this impossible condition while uncovering the truth behind how this nightmare began. The series combines psychological suspense with medical intrigue, exploring themes of self and survival. Higashino's intricate plotting drives the narrative forward, creating a compelling exploration of what it means to be human when your mind is no longer entirely your own.