[The wings have a row of straps right at the elbow, which explains why he can't bend his arms or get out of the costume. He obediently holds the wings out]

It's a tragedy - guy falls for a Sylph on his wedding day, runs after her, but the Sylph wants to be free. A witch gives him a scarf that's suppose to make her his, but when he wraps her up, her wings fall off and she dies.