Based on the Pretty Little Liars series of young adult novels by Sara Shepard, the series follows the lives of four girls — Spencer, Hanna, Aria, and Emily — whose clique falls apart after the disappearance of their queen bee, Alison. One year later, they begin receiving messages from someone using the name "A" who threatens to expose their secrets — including long-hidden ones they thought only Alison knew.

After discovering their significant others are siblings, two resentful exes must spend Christmas under one roof — while hiding their romantic history.

It's the summer of 1987, and recent college grad James Brennan can't wait to begin his long-anticipated dream trip to Europe. Unfortunately, James' plans come to a screeching halt when his parents announce that they are unable to subsidize his trip. Forced to take a job at the local amusement park, James prepares for the worst summer ever, until he finds love with a captivating co-worker named Em.

Maggie is an alluring free spirit who won't let anyone – or anything – tie her down. But she meets her match in Jamie, whose relentless and nearly infallible charm serves him well with the ladies and the cutthroat world of pharmaceutical sales. Maggie and Jamie's evolving relationship takes them both by surprise, as they find themselves under the influence of the ultimate drug: love.