Google has brought its interactive videos, 'Spotlight Stories', to YouTube with a festive thriller called Special Delivery.
The Christmas mystery was made in collaboration with Aardman Animations, makers of Wallace and Gromit, and allows you to use your Android phone to explore a 360 degree interactive scene.
Web and iOS users can also enjoy a slightly less interactive version of the video, where a caretaker tries to solve the mystery of a stranger on the roof, delivering presents to people in his building.
The video uses sensors in your phone to allow you to move the handset to investigate the scene.
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If you look away from the main character, the story will pause, allowing you to unlock other side-stories only available by exploring the scene.
Spotlight Stories started as a project in partnership with Motorola where 360 degree animated adventures were made avaialble through a dedicated app.
Special Delivery marks the first appearance of Spotlight Stories on YouTube, where you have the option to use Cardboard to help solve the mystery.