Watch Pretty Little Liars Online: Season 6 Episode 20

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Who had the twin?

OnĀ Pretty Little Liars Season 6 Episode 20, the liars had to up the stakes in their campaign to find the killer and their stalker when A's threats escalated.

While investigating, they found out that someone they know had a twin and found themselves embroiled in a bigger web of lies than ever.

Yvonne questioned where Toby's loyalty is when he ditched her for Spencer, but will Spoby reunite before the episode is over?

Use the video above to watch Pretty Little Liars online to get up to speed.

Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.

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