The narrator works at a small pet store. She lives with Sylvester, a heartthrob who often struggles to evade his admirers. One evening, Matilda knocks on their door seeking shelter with the world's largest dog. Matilda has a problem: she believes she is losing her mind. The trio, bonded by necessity and affection, sets out to defeat an invisible monster. Mariana Leky manages to make this battle against dizzying windmills sound like a film comedy: a delightful yet moving novel about panic and other afflictions. Only those who confront their fears can overcome them. A conversation with Mariana Leky about her first novel 'First Aid': "How do you help a friend who is afraid to cross the street? In your novel 'First Aid', three friends...".