Young Heydrich (Jason Clarke) fell in love with a woman named Lina (Rosamund Pike) at first sight at a dance, and he deeply agreed with Lina's Nazi ideology. After the two got married, Heydrich became a member of the Nazi SS with the help of Lina, and began to massacre Jews. His atrocities made him the target of the "Ape" operation. Jan Kubis (Jack O'Connell) and Joseph Gabišik (Jack Reynor), who were responsible for the assassination mission, sneaked into Prague alone and began to prepare under the cover of the Czech resistance organization. Jan also developed a poignant love with the girl Anna (Mia Wasikowska), but the cruel reality reminded everyone that time is running out. The massacre continued, and the assassination finally began...