The seventh series of Buffy the Vampire Slayer begins with a mystery: someone is murdering teenage girls all over the world and something is trying hard to drive Spike mad. Buffy is considerably more cheerful in these episodes than we have seen her during the previous year as she trains Dawn and gets a job as student counsellor at the newly rebuilt Sunnydale High. Willow is recovering from the magical addiction which almost led her to destroy the world, but all is not yet well with her, or with Anya, who has returned to being a Vengeance demon in "Same Time, Same Place" and "Selfless", and both women are haunted by their decisions.

Haunting of a different kind comes in the excellent "Conversations with Dead People" (one of the show's most terrifying episodes ever) where a mysterious song is making Spike kill again in spite of his soul and his chip. Giles turns up in "Bring on the Night" and Buffy has to fight one of the deadliest vampires of her career in "Showtime". In "Potential" Dawn faces a fundamental reassessment of her purpose in life. This is a spectacular start to Buffy's last year as the consequences of earlier actions unfold in a string of surprises and shocks punctuated as always by some of the funniest lines on television. --Roz Kaveney