MEDIUM “How To Make a Killing in Big Business” (Season 5 Episode 12) May 2, 2009 Medium Take a sneak peek of Medium‘s Season 5 Episode 12 “How To Make a Killing in Big Business” airing Monday May 4 (8-9 p.m. ET). Episode Synopsis: MEDIUM “How To Make a Killing in Big Business” (Season 5 Episode 12) – Allison (Emmy winner Patricia Arquette) meets Caitlyn Lynch (guest star Tracy Pollan, “Natalee Hollowayâ€), a psychic who works for the multi-national Lydecker Corporation, and is recruited to work for them, leaving her job at the DA’s office. Allison, while thoroughly enjoying the extravagant corporate world, struggles with her quick departure from the DA’s office and can’t stop dreaming about a serial killer on a rampage in Phoenix. When Allison continues to share her dreams with Devalos and Scanlon, it proves to be a conflict of interest for her new boss, Mr. Lydecker, (guest star David Morse, “John Adamsâ€) who makes it clear her dreams now belong to him and she can share them with no one else. Meanwhile, Ariel (Sofia Vassilieva) begins taking pills in order to stop her visions of a young girl’s ghost and to help her focus on PSAT preparation. Jake Weber, Maria Lark and Madison & Miranda Carabello also star. Show Cast: Sofia Vassilieva, Maria Lark, David Cubitt, Jake Weber, Patricia Arquette, Miguel Sandoval Read all our Medium coverage here. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)