Italo horror maestro Dario Argento is set to shoot “The Mother of Tears,” a tale of witches and suicides in contempo Rome being billed as episode three of the helmer’s cult “Three Mothers” trilogy.U.S. scribe duo Jace Anderson and Adam Gierasch (“Toolbox Murders”) are co-penning with Argento. Casting is being finalized for “Tears,” which is skedded to start shooting in Rome in June. Italy’s Medusa is co-financing with a U.S. partner to be announced here at Cannes. Claudio Argento and Giulia Marletta will produce. “This is going to be vintage Argento. Pretty strong stuff,” said Medusa topper Giampaolo Letta.