On leave from Canada's Community Policing department, Esa Khattak is traveling in Iran, reconnecting with his cultural heritage and seeking peace in the country's beautiful mosques and gardens. But Khattak's supposed break from work is cut short when he's approached by a Canadian government agent in Iran, asking him to look into the death of renowned Canadian-Iranian filmmaker Zahra Sobhani, who was murdered at Iran's notorious Evin prison, where she'd been seeking the release of a well-known political prisoner.