Aspiring young actress Maggie Nelson, who lives in New York City with her father, an Interpol agent, gains chameleon-like powers one night after she gets unknowingly caught between a severe electrical storm and a magic rune her father had brought home to study after it was found at the scene of a murder at a New York City museum. Her powers are from a secret and ancient race known as the Chameliel, who are able to hide in plain sight due to their shape shifting abilities, and she is told all about the Chameliel after meeting a young Chameliel named Mosaic. The murder victim at the museum was a Chameliel who was killed by another Chameliel named Maniken, who is stealing some of the many powerful Chameliel stones that are hidden around the world, intent on using them to gain the alchemical powers of his dead wife Facade, and ruling the world. After Maniken kidnaps her father, Maggie becomes determined to help Mosaic to fight Maniken. The two go from New York City, to the catacombs of Rome, to a large radio dish at the magnetic North Pole, trying to stop Maniken, as he plans to sacrifice Maggie's father as part of a ceremony to use the Chameliel stones to transfer to Maniken the powers of his wife from her body and rule Earth like a god. As Maniken prepares to begin the ceremony on the radio dish, Maggie uses her acting skills and shape-shifting abilities to fool Maniken into believing she is his dead wife come back to life, to distract him from noticing Mosaic is planting explosives that destroy everything on the radio dish and render the ceremony impossible, and getting her father to safety. During the battle against Maniken, it is revealed that Mosaic is Maniken and Facade's son who volunteered to the rest of the Chameliel to go after his father and stop him. Maniken is defeated when Mosaic willingly sends them both tumbling into an icy gorge, sacrificing himself to stop his father forever. Maggie then sneaks aboard the Interpol copter her father is taken onto, where she overhears him vowing to destroy all Chameliel. Upon returning home, she plans to continue acting and agrees to her father's request to continue her studies, but at the same time, acknowledging her powers as the piece of the rest of the Chameliel within her, she vows to search for the remaining Chameliel stones and use their power for good, and honor Mosaic and the rest of the Chameliel by becoming the new Mosaic.
Maggie's powers include shapeshifting, superhuman strength, the ability to cling to surfaces allowing for scaling walls and ceilings, seeing the DNA of other creatures, regeneration, infrared vision, camouflage, invisibility and the ability to mimic voices as well as a gift for understanding the Chameliel language. Strangely, when Maggie becomes invisible, her outline gives off the appearance that she is completely naked, even though she is in fact wearing clothes. Why her clothes are not outlined when her body is invisible is never made clear.
Reception
Mosaic has received mixed reviews. Movie reviewer Rotten Tomatoes gave it an audience rating of 49%, based on 2 reviews.