Luis Lacasa, a prestigious homicide inspector in Madrid, is forced to accept a transfer to the Canary Islands and adapt to everything he hates: the heat, the sand and the tourists, but above all to Naira, a charismatic inspector, a lover of her land with whom, despite their differences and rivalries, he forms a good team and at the same time, a complicity that questions his firm convictions. Luis, cold and cerebral, suffers from achromatopsia, a visual dysfunction that makes him see life in grey tones, without color, a pathology that has amplified his hermeticism. In this criminal paradise, the inspector meets his daughter Jimena, a renowned chef with whom he has been estranged since his wife died in the accident that left him with after-effects. Life on the islands will push him to leave his comfort zone, meet his daughter and be amazed by a disturbing detail; sometimes, he perceives color in the inspector.
—Canon y mus