Members of a book club start to receive threatening letters that reveal their darkest secrets. When the recipients of the letters start dying, Natalie Johnson frantically searches for the culprit to protect her daughter from becoming the next victim.

Members of a book club start to receive threatening letters that reveal their darkest secrets. Then, they disappear one by one.

Lifetime's new film, “The Book Club Murders,” airs Thursday, October 3 at 8 p.m. Eastern. Here's how to stream it for free online today if you don't have cable.

Helmed by Logan Giese, ‘The Book Club Murders’ follows Natalie Johnston as she joins a book club filled with busybodies. Her amusement with the club’s activities is short-lived, as the members begin receiving threatening letters written to them with a poisoned pen,