Mary (The Ballad of Mona Lisa)

Mary is the main antagonist of Panic at the Disco's music video for their song, The Ballad of Mona Lisa.

The video takes place in the Victorian Era. Mary is responsible of murder of the protagonist (played by the lead singer, Brandon Urie). However before she killed him (through means unknown) he kept a not in is hand that said "Mary Did It". However, seeing as to how she is also preparing his body for burial, she keeps the not in his hand where others will not see it. The protagonist returns as a ghost but is unable to expose her as his murderer, given no one can see or hear him. However, he encounters a little girl who can see him, and she takes the not from his dead hand lifts it up for everyone to see. Mary is exposed and tries to escape, but someone shoots a net at her with a gun and stops her. The protagonist then looks in to the screen, where fire is reflecting in his eyes, possibly implying they burnt her at the stake for what she did.