When Miss Pickhart visits the illusionist Ratchet on official Town Hall business, she discovers a sinister secret. Alone in the cellar after Ratchet is called away, she confronts the ghost of Rosalinda who met an untimely death during the 'saw the woman in half' trick.

The ghost believes it was not an accident and calls upon Miss Pickhart to release her. To do this Miss Pickhart must relive that fateful night and climb into the cabinet. It seems as though she too is to meet a grim death until the play takes an unexpected twist.