The cast and crew of In Plain Sight gathered at the Los Angeles Times' Envelope Emmy screening series this week.

And fans of the USA hit will be very interested in what they had to say. According to E! Online, the following scoops were discussed...

Hello, Mary's sister? Laura Prepon - who guest-starred on How I Met Your Mother this season - will be introduced as Lauren on the next new episode.

She shows up with a letter from Mary's father. Does this mean Lauren is Mary's sister? Said Executive Producer David Maple:

"We will not see [Lauren] again this season, but that doesn't mean that she doesn't somehow come into play perhaps in some way."

What about Mary's love life? "Raph [Cristián de la Fuente] and I definitely give our love another chance, so we get a lot closer this season than last," said star Mary McCormack.

Does that mean nothing is brewing between Shannon and Det. Dershowitz?

"Coming into season two, Bobby D. is moving closer and closer to Mary's inner circle," said actor Todd Williams. "They still have a working relationship, but there is definitely a growing relationship."

Tissues needed for the season finale? Yes, according to Lesley Ann Warren: "Something really awful happens to Mary, and we all have to rally around her. It's emotionally big and catastrophic in its possibilities."

Added Nichole Hiltz: "Our finale carries out over two episodes. It's a heartbreaking finale, [and] it's unexpected."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.