Hallam's talent for spying on people reveals his darkest fears-and his most peculiar desires. Driven to expose the true cause of his mother's death, he instead finds himself searching the rooftops of the city for love.

• Film4 Productions
• Ingenious Film Partners
• Jamie Bell
• Sophia Myles
• Ciarán Hinds
• Claire Forlani
• Jamie Sives
• Maurice Roëves
• Ewen Bremner
• Lucy Holt