Charming and energetic journalist Antonia Mildmay travels from London to New Zealand to receive a small inheritance left in the will of Aunt Laura. Simon, Antonia's cousin living in New Zealand, invites his sister to stay at his house. Moreover, his wedding with his adored Iris is coming soon. She is Aunt Laura's former companion. Simon's future wife is busy with pleasant pre-wedding chores and arranging a new house for a private boarding house. From the very first night spent in her cousin's house, Antonia notices some oddities around her. She tries to find out everything directly from Iris, but is met only with bewilderment. Simon's fiancée attributes all of Antonia's fears to her nervous character, suspiciousness, and even some kind of mental illness, trying to convince everyone around her of this. But brave Antonia does not give up and tries to figure everything out on her own. From the lawyer of the deceased Aunt Laura, she unexpectedly learns that the contents of the will are not at all what Iris and Simon told her about. And then a lot becomes clear. Having gone through fear, danger, and suspicion, Antonia finds answers to everything that was happening in her cousin’s house. Fate gives the brave girl a gift - love, which flares up completely unexpectedly.