Private detective Tatyana Ivanova had to become everything she could do to investigate this or that case. But this is the first time to try on the medical uniform of an Ambulance paramedic. And not only to try it on, but also to really work: running around day and night on calls, providing medical assistance, helping doctor Natalya Dyakova. And of course, keep an eye on her, look for who is harming Natalya in every possible way, trying to set her up and fire her...