After discovering a set of cryptic microcassettes in her new home, Cas is drawn into a meditative mystery of environmental sound and experimental music.。路彦希与林婉婷相恋五年，正筹备婚礼！却意外发现林婉婷接受了前男友徐浩轩的求婚，路彦希心灰意冷，下定决心与有婚约的苏晴完婚！。