At first Piper thought it was just coincidence that she was seeing kids everywhere: since she and Leo had been talking about starting a family, she thought she was just noticing them more. But then the kids start showing up on the Charmed Ones' front porch and coming into the house uninvited. No matter where Piper dispatches them, they're right back at Halliwell Manor minutes later. And they seem to be forming an orchestra...Meanwhile Phoebe has discovered a number of disappearances in San Francisco. Musicians have vanished all over the city and they were all candidates to organise a youth symphony. So how has Paige's new love managed to stick around long enough to be the symphony leader? And how does band practice at the manor fit in with all this? The Charmed Ones smell a rat but can they lead all of their Innocents out of danger before the final note is played?