"Vampire Diaries" season 5, episode 13 airs tonight - find out where to watch "Vampire Diaries" season 5, episode 13 via a free online live stream here! Will Stefan be fooled by Katherine, who is acting as Elena?

To watch "The Vampire Diaries" season 5, episode 13, titled "Total Eclipse of the Heart," you can watch the free online live stream on The CW website here, in case you can't make it to your TV.

Here are two more links to watch a live free stream online of the episode tonight:

https://www.livestream.com/vampirediaries

https://www.ustream.tv/channel/the-vampire-diaries---live-stream

The official synopsis for "TVD" episode 13 gives away a bunch of spoilers: "Hoping to help everyone move past recent traumatic events, Caroline will convince Elena and Bonnie to attend Whitmore College's "Bitter Ball" for broken-hearted students. Bonnie will be intrigued with a fellow student named Liv (guest star Penelope Mitchell), who appears to be dabbling in witchcraft. Tyler will start to worry about Matt's relationship with Nadia (guest star Olga Fonda). After making a disturbing discovery, Stefan will have a frustrating conversation with Damon and Enzo (guest star Michael Malarkey). Dr. Wes (guest star Rick Cosnett) is going to struggle to continue his research project with help from a new benefactor, named Sloan (guest star Caitlin McHugh). Still bent on revenge, Damon and Enzo will resort to violence to convince Bonnie and Jeremy to help them, but their plan will take an unexpected and horrifying turn."

According to Wetpaint, in the extended promo for "The Vampire Diaries" season 5, episode 13, Elena (spoiler alert: she's actually Katherine in Elena's body) asks Stefan while she slow dances with him at the ball: "What did Damon and Enzo do now?"

Looks like Stefan is under Katherine's spell - will he soon find out she's not actually Elena, or will Katherine be able to fool the younger Salvatore brother? Watch out, Stefan! Katherine may be spinning you into her invisible web.

"The Vampire Diaries" season 5, episode 13 "Total Eclipse of the Heart" airs tonight, February 6 at 8:00 PM on The CW.