unfold something into something
to spread something out into something. The child unfolded the page into a model village. I unfolded the brochure into a large colorful sheet of advertising.
unfold into something
1. [for something folded up] to unfold into something. The greeting card unfolded into a little paper house. It unfolded into a cute scene.
2. Fig.[for a story] to develop into something interesting. (Fig. on {2}.) The story unfolded into a real mystery. The tale unfolded into a farce.