In the House, In a Heartbeat is an instrumental piece composed by John Murphy for the 2002 post-apocalyptic horror film 28 Days Later. The composition features a relentless, accelerating rhythm and minimalist repeating patterns that create intense tension and dread, perfectly capturing the film's atmosphere of panic and desperation. The theme plays during critical chase sequences as the characters are pursued by infected humans.
A haunting piano reinterpretation of the orchestral soundtrack from the LGBTQ+ themed animated short "In a Heartbeat" (2017), which follows a boy struggling with his crush.
