'Close to the Enemy' is a gripping espionage drama set in post-World War II London. Freddie Highmore plays Callum Ferguson, an intelligence officer tasked with recruiting German scientists for the British government. As Callum navigates the complex world of politics and espionage, he becomes entangled in a web of secrets and lies. Highmore's nuanced performance brings depth to the character, making 'Close to the Enemy' a compelling series to watch on HBO Max.