Gift unwrapping mechanism in Unity.

Long story short: We need to create a game in which user can unwrap the gifts in 3D environment using Unity. We need to unwrap gift by using (paper tearing sound) synced with it and want to achived nearest to real simulation. Further details: I would like to make a game where we give the user a plain piece of paper and the have to tear it using his finger, complete with its trail while dragging. Here is a game that does have paper tearing and it seems to be user controlled from what i can see in the video [login to view URL] For clarification here is the youtube link of what we want to achived: [login to view URL] Also have a look on the video attached with this job post.