When strangers Jim, Eva, Emily and Mo meet William online in his new 'Chelsea Teens!' chatroom, they're completely seduced by his fast-talking, charismatic character. But beneath the surface lies a much darker truth. William is a dangerous loner, channeling all his energies into cyberspace. He's become an analyser, a calculating manipulator who finds it almost impossible to interact normally with others in the real world, instead turning his hand to manipulating people online.
Rachel Carson, a best-selling crime novelist, is devastated and filled with guilt over the accidental death of her son. Hoping that a change of scenery will help alleviate her suffering, she leaves her home in the city and moves into a vacant country house owned by a friend and begins a relationship with charming local Angus. But, just as her life is taking a turn for the better, Rachel realizes she's being romanced by a ghost, leading her to doubt her own sanity.