Detective Conan: Series 15 (2005)

Kogoro is hired by a woman to find her missing cell phone, which her lover is about to call. Not long after she finds it, she is murdered and the killer appears to be one of her family members, all of whom have alibis...Dr. Agasa's latest cipher proves a tough nut to crack even for Conan. Meanwhile, Conan helps Ran and Sonoko figure out a murder victim's dying message over the phone...