A costly Mistake covered in frost.

When Elsa's parents throw a Masquerade Ball to help her find a husband, Elsa is forced to created two masks, one for her at the ball and one for the man she chooses at the ball.
Both must be linked by a common ingredient, Elsa's ice powers, which she grudgingly adds.
When the ball approaches, Elsa meets a boy (Jack Frost) and falls for him at once. She secretly gives him the second mask and a promise to come to the ball.