‘How I Met Your Mother’ Season 9 Episode 7 Trailer, Spoilers: Haunted Hotel Room And Robin In A Bodysuit

"How I Met Your Mother" season 9 episode 7 trailer and official synopsis have been released, including a few teaser spoilers about what Lily and Robin will face in episode 7 of "How I Met Your Mother" season 9.

The new "How I Met Your Mother" episode 7 press release says Marshall is going to enlist Robin, Barney and Ted to remove an incriminating text on Lily's phone, Hollywood Hills reports.

In another press release for episode 7 of season 9, Daphne sends a troubling text message to Lily, Marshall is going to enlist the gang's help to remove the message while enforcing the "No Questions Asked" rule.

Spoilers in the teaser trailer of episode 7 (watch below) suggest that this episode of "How I Met Your Mother" is going to get pretty crazy. Lily seems convinced that her hotel room at a "country inn" is haunted, and we are thinking this is the Halloween episode of "HIMYM," as it airs just a few days before October 31.

Robin also appears to be running around in a purple bodysuit. For what reason, no spoilers seem to give answers, but we can't wait to find out what our favorite characters are up to now.

There's also a clip of Barney in the hospital, with Marshall asking Barney whether he swallowed real-life versions of every single Lucky Charms marshmallow for a dare.

Maybe Barney is acting crazy due to cold feet about his upcoming wedding to Robin.

There are a few things that seem unanswered by the promo trailer for episode 7 of season 9 of "How I Met Your Mother," including how will Lily react to Marshall wanting to be a judge, and where is the Mother?

CarterMatt.com notes that Cristin Milioti, or "the Mother," seems to be absent from the promo and from most scenes so far.

We're hoping the writers start giving some more screen time to Milioti, so that we can learn more about her story and Ted's.

Guest stars will include: Sherri Shepherd as Daphne, Rhys Darby as Hamish, David Grammer as Captain Dearduff, Tre Moye as a Bellhop, Lindsey Alley as a Woman, and Donna Pieroni as a Maid.

Episode 7 is set to air on Monday night, October 28th at 7pm central time on CBS.