The Blackwell Convergence

The Blackwell Convergence is a 2009 graphic adventure game developed and published by Wadjet Eye Games. It is the third entry in the "Blackwell" series, following "The Blackwell Legacy" and "Blackwell Unbound".
Plot.
"The Blackwell Convergence" takes place six months after the events in "Legacy." While visiting a gallery viewing, Rosa starts to investigate a possible lead from a director at a film company. She soon finds out that an actor from their recent film has been murdered. Rosa also finds out about an old murder of a researcher whose work was stolen to benefit a rival corporation. Finally, on the gallery's opening night The Countess makes an appearance as a ghost and kills the artist whose paintings are on display. In all three cases, the companies were funded by the venture capitalist firm Meltzer Foundation and Rosa finds out that they benefited greatly from all three deaths. Rosa confronts them and also learns that it was The Countess who did the killings after forming a bond with Charles Meltzer, one of two brothers owning the Meltzer Foundation. He tries to kill Rosa as well, but The Countess' old guide Madeline interferes and Rosa helps her to break the bond between The Countess and Charles Meltzer. Freed from the bond, The Countess tries to take revenge on Charles, but is stopped by Rosa and Joey and Rosa helps her to move on. Rosa learns that The Countess broke her bond with her guide Madeline and soon lost her mind; she then bonded with Joe Gould, later Joseph Mitchell, and finally Charles Meltzer.
Development.
Two real people are included in the cast of characters: writer Joseph Mitchell returns, as well as New York eccentric Joe Gould. This game was originally to be released sometime around June 2008, but was delayed for a variety of reasons. However, the game was released on July 22, 2009.